The first trapezoid is
Area of the trapezoid = Area of the rectangle + area of the triangle
Area of the rectangle = length
× width
length = 6m
width = 3m
Hence, area of the rectangle = 6
× 3= 18 sq m
Area of thet triangle =
12 × base
× height
Base = 4 m
Height = 3 m
Area of the triangle =
12 × 4
× 3
= 6 sq m
Hence, the area of the first trapezoid = 24 + 6= 30 sq m
The next trapezoid is
Area of the trapezoid = Area of the rectangle + area of the triangle
Area of the rectangle = length
× width
length = 5m
width = 4m
Hence, area of the rectangle = 5
× 4= 20 sq m
Area of thet triangle =
12 × base
× height
Base = 4m
Height = 4m
Area of the triangle =
12 × 4
×4
= 8 sq m
Hence, the area of the second trapezoid = 20 + 8= 28 sq m
The next trapezoid is
Area of the trapezoid = Area of the rectangle + area of the triangle
Area of the rectangle = length
× width
length = 8m
width = 4m
Hence, area of the rectangle = 8
× 4= 32 sq m
Area of thet triangle =
12 base
× height
Base = 4m
Height = 4m
Area of the triangle =
12 × 4
×4
= 8 sq m
Hence, the area of the trapezium = 32 + 8= 40 sq m