Answer:
Total area = 232.5 m²
Total cost to paint the area = £139.5
Explanation:
Area of the composite figure = Area of trapezoid A + Area of rectangle B + Area of trapezoid C
Area of trapezoid A =
Here,
and
are the parallel sides and h is the distance between them.
Area of A =
= 36 square meter
Area of rectangle B = Length × width
= 12 × 10
= 120 m²
Area of trapezoid C =
= 76.5 m²
Therefore, area of the composite figure = 36 + 120 + 76.5
= 232.50 m²
Cost of paint = £6 for a tin that covers 10 m²
Therefore, total cost to paint the given figure =
= £139.5