Question

Find the side length, b.

Round to the nearest tenth.
C
a
BL
b
A
C
b = [?]
B = 90°
a = 6
C=7

Answer 1

b = 9.2 (Rounded to the nearest tenth)

Explanation:

ABC is a right-angled triangle at B.

Then ,according to the Pythagorean theorem:

`b = √(a^2 + c^2)`

`= √(6^2 + 7^2)`

`= √(36 + 49)`

`= √(85)`

`=9.219544457293`