Question

What is the perimeter of the rhombus below?

Answer 1

Answer:A

Explanation:

from Pythagoras principle we get:

Hypotenuse=√(4^2+2^2)

Hypotenuse=√(4x4+2x2)

Hypotenuse=√(16+4)

Hypotenuse=√(20)

Hypotenuse=√(4x5)

Hypotenuse=√4 x √5

Hypotenuse=2 x √5

Hypotenuse=2√5

Perimeter=4 x hypotenuse

Perimeter=4 x 2√5

Perimeter=8√5