Figure WXYZ is made up of six identical rectangles. Each rectangle has a length of 20 cm.
- Find the perimeter of Figure WXYZ.
- Find the area of Figure WXYZ
(a)
Breadth of one rectangle = 1 u
Length of one length = 2 u
2 u = 20
1 u = 20 ÷ 2 = 10
Length of Figure WXYZ = 4 u
Breadth of Figure WXYZ = 3 u
Perimeter of Figure WXYZ
= 4 u + 4 u + 3 u + 3 u
= 14 u
= 14 x 10
= 140 cm
(b)
Area of 1 rectangle
= 20 x 10
= 200 cm
2 Area of Figure WXYZ
= 6 x 200
= 1200 cm
2 Answer(s): (a) 140 cm; (b) 1200 cm
2