kits home, which is 24ft wide and 32ft long, needs a new roof. by counting clapboards that are 4in apart, Kit determines that the peak of the roof is 6ft higher than the sides. If one packet of shingles covers 100 square feet, how many packets will the job require
2007-07-16 08:15:39 · 2 answers · asked by jesis332 1 in Science & Mathematics ➔ Mathematics
By a^2 + b^2 = c^2 the side of the roof section is approximately 13.5 feet. the area of one side is then 432 square feet. double that for the area of the roof for a total of 864 square feet.
you will need 9 squares of shingles to complete the job.
a square of shingles is usually 3 bundles.
2007-07-16 08:25:50 · answer #1 · answered by Gerald D 2 · 0⤊ 0⤋
The incline of the roof is (6^2 + 12^2)^0.5 = 13.4. The area of the roof is 2 * 13.4 * 32 = 858 sf.
Need 9 packets min.
2007-07-16 15:28:49 · answer #2 · answered by gebobs 6 · 0⤊ 0⤋