Quadrilaterals and Polygons: Trapezoids and Kites

Think & Click: Perimeter and Area of Trapezoids and Kites

Now, you try. Complete the Think & Click activity by looking at the problem below, thinking about it, and then clicking on the question to reveal the solution.

Find the perimeter and area of trapezoid ABCD.

Trapezoid ABCD, bases are AB and DC, with perpendicular height labeled 4

AB = 12

BC = 8

CD = 17

AD = 5

P = 12 + 8 + 17 + 5 = 42 units.

A equals one-half times the quantity b 1 plus b 2 times h; A equals one-half times the quantity 17 plus 12 times 4, A equals 58 units squared

Find the perimeter of the kite with one side length equal to 34 cm and another side length equal to 22 cm.

P = 2s₁ + 2s₂

P = 2(34) +2(22) = 112 cm

Find the area of the kite with diagonals of length 24 inches and 50 inches.

A equals one-half times d 1 times d 2, A equals one-half times 24 times 50, A equals 600 inches squared