Email
Chat with tutor
logo

Ask Questions, Get Answers

X
 
Answer
Comment
Share
Q)

The circumradius of the $\Delta$le whose sides are $13,12\; and\; 5 \;is$?

$(a)\;15\qquad(b)\;\large\frac{13}{2}$$\qquad(c)\;\large\frac{15}{2}\qquad$$(d)\;6$

1 Answer

Comment
A)
Toolbox:
  • In any $\Delta\:ABC$, $\large\frac{a}{sinA}$$=2R$ where $R$ is circum radius and $a$ is side opp. to angle $A$.
Let the sides of the $\Delta$le be $a=13,b=12,c=5$
Now $a^2=b^2+c^2$
$(13)^2=(12)^2+(5)^2$
Hence the Pythogrous theorem is true.
$\Rightarrow \angle A=90^{\large\circ}$
We know that $R=\large\frac{a}{2\sin A}$
$R=\large\frac{13}{2\sin 90}$
$\;\;\;=\large\frac{13}{2}$
Hence (b) is the correct option.
Help Clay6 to be free
Clay6 needs your help to survive. We have roughly 7 lakh students visiting us monthly. We want to keep our services free and improve with prompt help and advanced solutions by adding more teachers and infrastructure.

A small donation from you will help us reach that goal faster. Talk to your parents, teachers and school and spread the word about clay6. You can pay online or send a cheque.

Thanks for your support.
Continue
Please choose your payment mode to continue
Home Ask Homework Questions
Your payment for is successful.
Continue
Clay6 tutors use Telegram* chat app to help students with their questions and doubts.
Do you have the Telegram chat app installed?
Already installed Install now
*Telegram is a chat app like WhatsApp / Facebook Messenger / Skype.
...