What is the equation for the area of a non right triangle?

I think the equation is still the same as a non-right triangle. a=(w*l)/2

As long as it's a triangle, that would be the equation. This is because for finding the area for a square or rectangle (quadrilateral) is always a=w*l, that means that the equation for any triangle is always a=(w*l)/2. The division by 2 for the triangle's equation is there because a triangle is half of a quadrilateral. So you would have to divide the quadrilateral's equation by two. Hope I helped :)

The formula for the area of a sphere is ...

... A = 4πr²

Solving for r gives

... r = √(A/(4π)) = (1/2)√(A/π)

The formula for the volume of a sphere is ...

... V = (4/3)πr³

Comparing this to the area formula, we see that ...

... V = A·(r/3)

a) Scale factor = √(area ratio) = √(100π/(36π)) = 10/6 = 5/3

... The larger sphere is 5/3 the dimensions of the smaller sphere.

b) Radius of the smaller sphere is

... (1/2)√(36π/π) = 3 . . . units

c) Radius of the larger sphere is

... (1/2)√(100π/π) = 5 . . . units . . . . = (5/3)·3 units

d) Volume of the smaller sphere is

... V = A·r/3 = (36π)·(3/3) = 36π . . . units³

e) Volume of the larger sphere is

... V = A·r/3 = (100π)·(5/3) = 500π/3 . . . units³