Three paintings are shaped like an 8 ft sq, a 7ft by 4 ft rectangle, and a triangle with 6 ft base and a height of 7 ft. If those paintings are hung together n the outside of a building, how much of the buildings wall will they cover altogether? Please help
The square has area 88=64, the rectangle has area 74=28, and the triangle has area 7*6/2=21. Their sum is 64+28+21=113.
The area of the building wall that would be covered = 113 ft²
Area of a composite shape = sum of all shapes that makes up the composite shape.
Thus:
The area of the building wall that would be covered = area of square + area of rectangle + area of triangle
= s² + length × width + 1/2(b × h)
= 8² + 7 × 4 + 1/2(6 × 7) = 113
The area of the building wall that would be covered = 113 ft²
Learn more about area of composite shape on:
https://brainly.com/question/8408690