220k views
3 votes
Find the area and the perimeter.

Find the area and the perimeter.-example-1
User Erald
by
4.3k points

1 Answer

4 votes

Answer:

Area =910 Perimeter = 14 units

Explanation:

Area is the inside measurement: A = L× W

The area of the whole rectangle - the white section = the area of the blue section

Whole - the white

rect. rect.

A = (L x W) - (L x W)

A = ( 20 × 50) - (6 × 15) = 1000 - 90 = 910 sq. units

Remember that perimeter is the distance around the figure: P = 2L + 2 W

Perimeter = perimeter of the whole rect. - the perimeter of the white section.

Perimeter = 2(L) + 2(W) - 2(L) + 2 (W)

2(50) + 2(20) - (2(6) + 2(15))

(100 + 40) - (12 + 30)

140 - 36

104

User Milo Lu
by
4.3k points