Area of triangle = 0.5 * width * height
So 27 = 0.5 * w * (w-3)
or 54 = w2 - 3w
ie w2 - 3w - 54 = 0
w2 - 9w + 6w - 54 = 0
w(w - 9) + 6(w - 9) = 0
ie (w - 9)(w + 6) = 0
So w = 9 or w = -6
But since w is a width, it must be positive and so w = 9 cm.
To get the area of a triangle you multiply length by width and divide by two.
(height * width)/2
You first multiply the length and the width, the you divide it by 2.
To find the length of a triangle or what ever shape your trying to find all you have to do is multiply width times the area. * * * * * Or, if you want the correct answer, you could try to divide the area by the width. That assumes the shape is a rectangle and that the area and width are known!
60 square feet.
To get the area of a triangle you multiply length by width and divide by two.
The area of triangle is : 44.0
The area of triangle is : 60.0
The area of triangle is : 16.0
(height * width)/2
Because a triangle is half of a rectangle. The area of a rectangle is length times width, the area of a triangle is half that.
length times width squared
23
We can't tell the difference between the "base" and the "width" of a triangle, so we're frankly stumped.
The area of a Reuleaux triangle with constant width s is 0.5*[pi - sqrt(3)]*s2
in finding the area if a square or rectangle multiply the length and width, for a triangle, multiply length and width divided by two.
Triangle area: bh/2 8x8/2=64/2=32(cm2)