Question

Find the perimeter of a rectangle measuring 3 cm by 12 cm

Answer 1

The parallel lines on a rectangle are equal so it would be 3+3+12+12=30

Answer 2

Hey there!

A rectangle has 2 pairs of equal sides. So there’s two sides with 12 cm and 2 sides with 3 cm. Add these together. 12+12+3+3=30cm. The perimeter of the rectangle is 30cm.

I hope this helps!