Question

Find the perimeter of each of these rectangles

Answer 1

a) 10√3 + 5√3 + 10√3 + 5√3 = 30√3 cm

b) (√10 + √2) + (√10 - √2) + (√10 + √2) + (√10 - √2)

= 4√10 cm

c) Simplifying √72: √36 x √2 = 6√2

Simplifying √18: √9 x √2 = 3√2

Finding the perimeter: 6√2 + 3√2 + 6√2 + 3√2 = 18√2 cm