Area of Triangles and Trapezoids base altitude base.

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Presentation transcript:

Area of Triangles and Trapezoids base altitude base

Area of Triangles and Trapezoids Find the area of each triangle ft 1.8 ft 5 ft ft 2

Area of Triangles and Trapezoids altitude Base 1 Base 2

Area of Triangles and Trapezoids 2. 3 in 4 in 2.5 in5.5 in = 12in

Area of Triangles and Trapezoids 3.6 yd 3 yd 12 yd 4 yd 2.5 yd rectangle A = l w trapezoid = yd rectangle

Pg – 2 #1 – 7, 8 – 20 Find the area of each triangle A = 60 m 2 13 m 10 m 12 m A = 5(12) 12

Pg – 2 #1 – 7, 8 – 20 Find the area of each triangle A = 47.6 m 2 7 m 13.6 m 12 m8 m A = 6.8(7) 7

Pg – 2 #1 – 7, 8 – 20 Find the area of each triangle A = 36 in 2 9 in 17 in 8 in 10 in A = 4(9) 8

Pg – 2 #1 – 7, 8 – 20 Find the area of each trapezoid A = 22 cm 2 5 cm 4 cm 7 cm 4 cm A = ( 11 )

Pg – 2 #1 – 7, 8 – 20 Find the area of each trapezoid A = 15 in 2 3 in 7 in A = ( 3 )

Pg – 2 #1 – 7, 8 – 20 Find the area of each trapezoid A = 63 ft 2 9 ft 10 ft 4 ft A = ( 9 )

Pg – 2 #1 – 7, 8 – A triangle and a parallelogram both have areas of 20 cm 2 and bases of 5 cm. What do you know about the heights? A = 20 cm 2 5 cm The height of the triangle is twice that of the parallelogram.

Pg – 2 #1 – 7, 8 – 20