answersLogoWhite

0

26 square feet? That is not a roof that is a patch. 5' X5' is 25 square feet, so a minimun job call for a roofer, about $100

User Avatar

Wiki User

12y ago

What else can I help you with?

Continue Learning about Trigonometry

How many shingles would it take to cover an area about 40 feet by 30 feet?

30 by 40 = 1200 sq.ft. divide by 10 = 12 square 3tab and arch shingles are 3 bundle per square 12 sq. x 3 bundles = 36 bundles 3tab = 26 shingle per bundle arch = 22 shingle per bundle 36 bundle x 26 = 936 3tab shingles 36 bundle x 22 = 792 arch shingles =)


A water slide is 26 feet high The angle between the slide and the water is 33.5 degrees What is the length of the slide?

Sin(33.5) = 26/Length so Length = 26/sin(33.5) = 47.1 ft, approx.


In this triangle side a 24 units side b 10 units and side c 26 units. Is this a right triangle?

Yes because the given dimensions comply with Pythagoras; theorem for a right angle triangle.


2 cards are drawn at random from a pack of 52 cards. find the probability that both the cards are spades?

P(First card) = 13/52 P(second card = 12/51 Because you have already drawn one spade , there is one less card in the pack . P(Both spades) = 13/52 X 12/51 = 156/2652 = 0.0588


A triangular plot of land has sides that measure 5 meters 7 meters and 10 meters What is the area of this plot of land to the nearest tenth of a square meter?

This is NOT a Pythagorean triangle. So we must fall back on the Cosine Rule for an agular value. Cosine Rule is a^(2) = b^(2) + c^(2) - 2bcCosA Algebraically rearranging CosA = [a^(2) - b^(2) - c^(2)] / -2bc Substituting CosA = [10^(2) - 7^(2) - 5^)2)] / -(2(7)(5)) CosA = [100 - 49 - 25]/-70 CosA = 26/-70 CosA = -0.371428571... A = Cos^(-1) -0.371428573 A =111.8037 481 ... degrees. - Now area of triangle is 0.5 X Base X height The height is = 7Sin(111.8037481...) Hence are is 0.5(5)(7)Sin(111.8037481...) Area = 16.248... m^(2)