Question

Please help with math

Answer 1

240 cm²

Explanation:

Split the shape into a trapezoid (top half) and a rectangle (bottom half).

Area of a rectangle = width x length

⇒ area = 6.5 x 20 = 130 cm²

`\textsf{Area of a trapezoid} = (1)/(2)(a+b)h`

(where a and b are the lengths of the base and top, and h is the height)

⇒
`\textsf{area} = (1)/(2)(20+20)*5.5`

⇒ area = 110 cm²

Total area = area of rectangle + area of trapezoid

⇒ area = 130 + 110 = 240 cm²