Question

The perimeter if a square is 60 feet, then find the length of the diagonal. if necessary, round to the nearest tenth.

a). 21.2
b). 15
c). 450
d). 30​

Answer 1

a). 21.2

Explanation:

square has 4 sides

one side = 60÷4 = 15

Use pythogoras theorem to find the hypotenuse thus the diagonal of the square.

x = √(15² + 15²)

x = √(225 + 225)

x = √450

x = 21.21 (2 dp)

Answer 2

B Perimeter is the sides added up together there for 60÷4 = 15