A sail is triangular shaped 18ft. by 11ft by 25ft. How many Sq.ft of material is needed to cover it?

Question

A sail is triangular shaped 18ft. by 11ft by 25ft. How many Sq.ft of material is needed to cover it?

Answer 1

A=bh/2

A=18*11/2

A=198/2

A=99

99sq.ft

If you wanted to cover both sides it would remain 198sq.ft

Answer 2

to calculate area of a tringle is 1/2 bh  so mutiply base times height and divide by 2 and that will be your answer

Answer 3

area of a triangle = 1/2BH

assuming the sail is a square triangle, as many sails are, then the largest value is the hypoteneuse, the smallest is the base, and the middle is the height.

A= 1/2 (11) (18)

A= 1/2 (198)

A=99

you need 99 sq ft of material to cover it.

Answer 4

99sf for one side, 198 for both.

1/2 base x height will give you area of one side then double it for both sides.

Answer 5

amount of material=area of the triangle

assuming base=11ft, height=18ft and hypotenuse=25ft...which should resemble the shape of a sail,

Area=1/2*base*height=0.5*11*18sq ft=99sq ft

Answer 6

Half base by diameter. Found out which number is the base and bingo!

The two answers above me only got there first because I am a slow typer (but brilliant at basic arithmetic!)

Answer 7

88.18 sq. ft

Answer 8

If you don't know the height or the base, you can use Heron's formula. (You just need the three side lengths, which you have)