Recent questions tagged sat

The base angle of an isosceles triangle is ten less than thrice the vertex angle. What is the vertex angle ?

asked Sep 18, 2018 by priyanka.c

1 answer

In triangles ABC and DEF, AB = FD and $\angle{A} = \angle{D}$. The two triangles will be congruent by SAS rule if

asked Sep 18, 2018 by priyanka.c

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In triangle $ABC$ and $PQR$, $AB = AC$, $\angle{C} = \angle{P}$ and $\angle{B} = \angle{Q}$. The two triangles are

asked Sep 18, 2018 by priyanka.c

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The length of a triangle are 8, 12 and $x$. Which of the following inequalities shows all possible values of $x$ ?

asked Sep 18, 2018 by priyanka.c

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Area of a triangle park is 180 sq. feet. Its base is 40 feet, find its height.

asked Sep 18, 2018 by priyanka.c

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In the figure $BA ||ED$ and $BC || EF$ Then $\angle{ABC} + \angle{DEF} $ =

asked Sep 18, 2018 by priyanka.c

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Three lines AB, CD and EF are concurrent at $O$. What is the value of $y$.

asked Sep 18, 2018 by priyanka.c

1 answer

If one of the angles of a triangle is $120^{\circ}$, then the angle between the bisectors of the other two angles can be

asked Sep 18, 2018 by priyanka.c

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POQ is a line. What is the value of $x$

asked Sep 17, 2018 by priyanka.c

1 answer

A triangle ABC has vertices (0, 0), (6, 0) and (2, 3) in the XY-plane. What is the area of $\Delta ABC$ ?

asked Sep 17, 2018 by priyanka.c

1 answer

In the figure find the value of $x^{\circ}$

asked Sep 17, 2018 by priyanka.c

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In a triangle, angle $x$ is three times the size of angle $y$ and $1/2$ the size of $z$. How big is angle $y$ ?

asked Sep 17, 2018 by priyanka.c

1 answer

The average measure of two angles of a triangle is $80^{\circ}$. What is the measure of the third angle ?

asked Sep 17, 2018 by priyanka.c

1 answer

Calculate enthalpy change when $2.38\;g$ of carbon monoxide vapourises at its normal boiling point. $\Delta H_{vap}$ of $CO=6.04\;kj\;mol^{-1}$

asked Sep 17, 2018 by meena.p

1 answer

Most metals react with acids to form

asked Sep 17, 2018 by meena.p

1 answer

A system does 200 J of work and at the same time absorbs 150 J of heat. What is the internal energy change ?

asked Sep 17, 2018 by meena.p

1 answer

The equilibrium constant for the reaction is 10. Calculate the value of $\Delta G^{-}$ given

asked Sep 17, 2018 by meena.p

1 answer

In a $\Delta ABC$, AB = 5 cm and BC = 7 cm, which cannot be the length of the side BC ?

asked Sep 17, 2018 by priyanka.c

1 answer

Enthalpy of combustion of carbon to carbon dioxide is $-393.5\;kJ\;mol^{-1}$. calculate the heat released upon formation of $35.2\;g$ of $CO_2$ from carbon to oxygen gas.

asked Sep 17, 2018 by meena.p

1 answer

Two sides of a given triangle are both 6 cm. If one of the angle is right angle, what is the measure of the hypotenuse ?

asked Sep 17, 2018 by priyanka.c

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A reaction ,$A+B \to C+D+q$ is found to have an positive entropy change. The reaction will be

asked Sep 17, 2018 by meena.p

1 answer

In the figure given below, ABCD is a square and AE is three times the length of ED. What is the area of ABCD ?

asked Sep 17, 2018 by priyanka.c

1 answer

Alex wants to fence his square field whose area is 3600 sq. feet. What will be the length of the diagonal rounded to the nearest whole number ?

asked Sep 17, 2018 by priyanka.c

1 answer

Tim Kaver his home and walks 10 minutes due west and then 5 minutes due south. What can be the shortest time he could walk from the current position to his house ?

asked Sep 17, 2018 by priyanka.c

1 answer

The enthalpies of all elements in their standard states are :

asked Sep 17, 2018 by meena.p

1 answer

In a process , 701 J of heat is absorbed by a system and $394\;J$ of work is done by the system . What is the change in internal energy for the process ?

asked Sep 17, 2018 by meena.p

1 answer

Calculate the entropy change when $36\;g$ of liquid water evaporates at $373\;K(\Delta _{vap} H=40.63\;kJ\;mol^{-1})$

asked Sep 14, 2018 by meena.p

1 answer

How much heat is required to raise the temperature of an aluminium vessel weighting 1.25 kg from $25^{\circ}C$ to $55^{\circ}$ ? Molar heat capacity of Al is $24\;J\;mol^{-1}K^{-1}$

asked Sep 14, 2018 by meena.p

1 answer

The average measure of two angles of a triangle is $80^{\circ}$. What is the measure of the third angle ?

asked Sep 14, 2018 by meena.p

1 answer

If the hypotenuse of a triangle is 5 meters, which of the following is the closest value to the area of the triangle ?

asked Sep 14, 2018 by meena.p

1 answer

In a triangle $\Delta ABC,\;AB=5\;cm,\;BC=7\;cm$. Which can be the length of the side AC ?

asked Sep 14, 2018 by meena.p

1 answer

Which of the following is not true about the hypotenuse of a right angled triangle ?

asked Sep 14, 2018 by meena.p

1 answer

The base angle of an isosceles trianlge is ten less than thrice the vertex angle the vertex angle ?

asked Sep 14, 2018 by meena.p

1 answer

If the base of a right angled triangle is 5 cm long and the height of the triangle is 7 cm longer than the base, what is the length of the third side of the triangle ?

asked Sep 14, 2018 by meena.p

1 answer

If $BA \perp AC$ and $DE \perp DF$ such that $BA=DE$ and $BF=EC$ then $\Delta ABC \approx \Delta DEF$ by congruency rule

asked Sep 14, 2018 by meena.p

1 answer

In the figure given below $DE \parallel QR$ and $AP$ and $BP$ are bisectors of $\angle EAB$ and $\angle RBA$ . Then $\angle APB$ is equal to

asked Sep 10, 2018 by meena.p

1 answer

Which of the below lines are parallel

asked Sep 10, 2018 by meena.p

1 answer

In the figure given below sides $QP$ and $RQ$ of $\Delta PQR$ are produced to point $S$ and $T$. If $\angle PQT = 110^{\circ}$ and $\angle SPR = 135^{\circ}$, then $\angle {PRQ} $ is

asked Sep 10, 2018 by meena.p

1 answer

Sam and Joe both start at the same point. Sam walks 30 feet north, while Joe walks 40 feet west. How far apart are they at their new locations ?

asked Sep 7, 2018 by priyanka.c

1 answer

If one of the short sides of a 45 - 45 - 90 triangle is 5, then how long is its hypotenuse ?

asked Sep 7, 2018 by priyanka.c

1 answer

When two lines meet at a point forming right angles, they are called

asked Sep 7, 2018 by priyanka.c

1 answer

Two lines in a plane can be

asked Sep 7, 2018 by priyanka.c

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Two sides of a triangle are 7 cm and 10 cm. Which of the following can be the length of the third side ?

asked Sep 7, 2018 by priyanka.c

1 answer

When water is added to conc. $H_2SO_4$ it gets very hot. This happens because dilution of conc. $H_SO_4$ is ........

asked Sep 7, 2018 by meena.p

0 answers

The bond dissociation enthalpy of gaseous $H_2, Cl_2$ and $HCl$ are $435, 243$ and $431\; kJ mol^{-1},$ respectively. Calculate the enthalpy of formation of HCl gas.

asked Sep 7, 2018 by meena.p

1 answer

The enthalpies of combustion of carbon and carbon monoxide are $-393.5$ and $-283\;kJ\;mol^{-1}$ respectively . The enthalpy of formation of carbon monoxide per mole is

asked Sep 7, 2018 by meena.p

1 answer

The enthalpy change for a reaction does not depend upon

asked Sep 7, 2018 by meena.p

1 answer

For the reactions, $C+O_2 \to CO_2 ; \Delta H= -393\;J,2Zn +O_2 \to 2ZnO$; $\Delta H= -412\;J$

asked Sep 7, 2018 by meena.p

1 answer

Can $85^{\circ}, 75^{\circ}$ and $20^{\circ}$ form a triangle ?

asked Sep 6, 2018 by priyanka.c

1 answer

If $\overline{PQ} \cong \overline{AB}$ and $\overline{AB} \cong \overline{CD}$, then $\overline{PQ} \cong \overline{CD}$. Which of the properties below does the lines signify ?

asked Sep 6, 2018 by priyanka.c

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