Asked by Lila
Joseph is building a triangular shaped planter in his front lawn. The sides of the planter will be 6 feet, 7 feet and 11 feet. The planter will be filled with soil 2 inches deep. How many cubic feet of soil will he need? Round up to the nearest hundredth.
Answers
Answered by
oobleck
you can find the area of the triangle using
(a) Heron's formula
or
(b) A = 1/2 ab sinC (and c^2 = a^2+b^2-2ab cosC to find C)
And the volume is just A * 2/12 ft^3
(a) Heron's formula
or
(b) A = 1/2 ab sinC (and c^2 = a^2+b^2-2ab cosC to find C)
And the volume is just A * 2/12 ft^3
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