Question

Two sides of a triangle measure 20 cm and 30 cm. Which of the following could be measure of the third side.

A-3cm
B-6cm
C-11cm

Answer 1

11 cm

Explanation:

the other two choices are too short

If 30 is the hypotenuse, the other two sides must exceed 30.

Answer 2

C-11cm

Explanation:

The sum of two sides of a triangle must always be bigger than the third!

3+20 is less than 30

6+20 is less than 30

11+20 is greater than 30!

Hope this helps :)