Question

Find the length of the missing side.

13
B
A
5
A) 13.9
B
7.
© 11
D) 12
E Not enough information.

Answer 1

D

Explanation:

12 cm,

Simply use Pythagora's theorem. The square of the hypotenuse = the sum of the squares of the other two sides

So, you get the square of the missing side by subtracting 5 squared from 13 squared, which gives 144.

Square root of 144 is the length of the missing side, i.e. 12 cm.