Thus the formula for the area of a triangle is. Where b and h are the base and height of the triangle respectively. The triangle encloses 14 of the northern hemisphere 90360 as viewed from the North Pole and therefore 18 of the Earths surface so in the formula f 18.
The formula is Area 1 2 b h displaystyle textAreafrac 12bh where b displaystyle b is the length of the triangles base and h displaystyle h is the height of the triangle.
Three Functions but same idea. Hence by the formula A 12 x b x h the formula for the area of the equilateral triangle can be derived as. If DABC above is isosceles and AB BC then altitude BD bisects the base. Sine Cosine and Tangent.