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Area of a Trapezoid What is the approximate area of Nevada?
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10.2 Areas of Trapezoids, Rhombuses, and Kites
• The height of a trapezoid is the perpendicular distance between the bases.
• The area of a trapezoid is half the product of the height and the sum of the bases.
1 21 ( )2
A h b b
Area of a Trapezoid• What is the approximate area of Nevada?
1 21 ( )2
A h b b
1 (309)(205 511)2
A
2110,622 .A mi
Finding Area Using a Right Triangle• What is the area of trapezoid PQRS?
2 3h
1 21 ( )2
A h b b
1 (2 3)(7 5)2
A
12 3A
Area of a Rhombus or a Kite• The area of a rhombus or a kite is half the product
of the lengths of its diagonals.
1 212
A d d
Finding the Area of a Kite• What is the area of kite KLMN?
1 212
A d d
1 (7)(6)2
A
221A m
More Practice!!!!!
• Homework – Textbook p. 626 #11 – 25 ALL.