Guest

If 8R 2 = a 2 + b 2 + c 2 , then triangle is [A] Right angled [B] isosceles [C] Equilateral [D] none


If 8R2 = a2 + b2 + c2, then triangle is
[A] Right angled [B] isosceles [C] Equilateral [D] none


Grade:12

1 Answers

AKASH GOYAL AskiitiansExpert-IITD
420 Points
13 years ago

Dear Nirabhra

Ans. is [A] Right angled triangle

As in right angle triangle suppose a and b are sides and c is hypotenuse

So a2 + b2 +c2=2c2

As we know in right angle triangle R is half of c

So

8R2 = a2 + b2 + c2

All the best.

AKASH GOYAL

AskiitiansExpert-IITD

 

Please feel free to post as many doubts on our discussion forum as you can. We are all IITians and here to help you in your IIT JEE preparation.

Win exciting gifts by answering the questions on Discussion Forum. So help discuss any query on askiitians forum and become an Elite Expert League askiitian.

Now you score 5+15 POINTS by uploading your Pic and Downloading the Askiitians Toolbar  respectively : Click here to download the toolbar..

 

Think You Can Provide A Better Answer ?

ASK QUESTION

Get your questions answered by the expert for free