Question

What's the length of side b in the figure?

options:

A) 91
Centimeter

B) 6
Centimeter

C) 120
Centimeter

D) 128
Centimeter

Answer 1

C-120cm

Explanation:

using pythagoras theorem to solve it

13^2=b^2+7^2

b^2=13^2-7^2

b^2=169-49

b^2=120

b=√120

b=10.95

Answer 2

The answer is C, 120 centimetres
Explaination:
You have to use the Pythagoras theorem
13 squared = 169
7 squared = 49
Since it’s the shorter side we are trying to find we subtract.
169 - 49= 120 cm