In the figure to the right, ABCD is a rectangle. Find the area of △ABC, if the area of △AOD is 10.
1 answer:
Assuming BOD and AOC are straight lines.
Area of the rectangle = 4 x ΔAOD
Area of the rectangle = 4 x 10
Area of the rectangle = 40 unit²
Area of ΔABC = 1/2 x 40
Area of ΔABC = 20 unit²
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