Question

Complete the statement about the square pyramid shown below.

x 5

Is x greater than 5 less than 5 or equal to 5?

Answer 1

x > 5

Explanation:

We know:

If a, b and c are length of sides of a triangle, then

a + b > c

a + c > b

b + c > a

We have a = x, b = x, c = 10.

Substitute:

x + x > 10

2x > 10 divide both sides by 2

2x : 2 > 10 : 2

x > 5