ABCD is an isoceles trapezoid with a height of 4 and bases a + 2 and a + 4. Find the area of the trapezoid.

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1 Answer

The trapezoid is made up of a rectangle and 2 congruent right triangles.

Area of rectangle=4(a+2) sq units

Combined area of triangles=4 sq units

Total area=4a+8+4=4a+12 sq units

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