1. Areas of Polygons COURSE 3 LESSON 8-7 Find the area of each parallelogram. a.b. A = bh Use the area of a parallelogram formula. = (32) (20) = (15) (11) Substitute for b and h. = 640 in. 2 = 165 cm 2 Multiply. 8-7

2. Areas of Polygons COURSE 3 LESSON 8-7 Find the area of the triangular part of the doghouse. The area of the triangular part of the doghouse is 378 in. 2. A = bh 1212 Use the area of a triangle formula.= 36 21 1212 Substitute 36 for b and 21 for h. = 378Multiply. 8-7

3. Areas of Polygons Find the area of the trapezoid. COURSE 3 LESSON 8-7 The area of the trapezoid is 35.2 in. 2. A = h (b 1 + b 2 ) 1212 Use the formula.= (4.4) (6.7 + 9.3) 1212 Substitute 4.4 for h, 6.7 for b 1, and 9.3 for b 2. = 35.2 Simplify. 8-7

4. Areas of Polygons Find the area of each. 1. 2. 3. COURSE 3 LESSON 8-7 12 in. 2 14 cm 2 56 ft 2 8-7