wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

If the sides of a triangle measure 72,75 and 21. What is the measure of its inradius?

A
37.5
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
24
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
9
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
15
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is C 9
Given: Sides of a triangle are 72,75 and 21
Semi perimeter s=72+75+212=84
Area of triangle =84×12×9×63=(2)4(3)6(7)2=(2)2×(3)3×7=4×27×7
Now,
Inradius r=s=4×27×784=9
Hence, 9 is the correct answer.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon