137k views
0 votes
What is the area of the figure? A. 90 mm2 B. 110 mm2 C. 130 mm2 D. 180 mm

What is the area of the figure? A. 90 mm2 B. 110 mm2 C. 130 mm2 D. 180 mm-example-1
User Amethi
by
8.2k points

1 Answer

5 votes
I see two shapes in the given figure. A rectangle and a triangle.

We need to get the area of the rectangle and triangle. We then deduct the area of the triangle from the area of the rectangle to get the area of the shaded portion.

Area of the rectangle = length * width
A = 11 mm * 10 mm
A = 110 mm²

Area of the triangle = (hb)/2
A = [(11mm-7mm)(10mm)] ÷ 2
A = (4mm*10mm) / 2
A = 40mm²/2
A = 20mm²

110 mm² - 20mm² = 90 mm² Choice A.
User Chad Moran
by
8.3k points