The area of a triangle is found using the formula A = 1/2 bh, where b is the base and h is the height of the triangle. Solve this formula for the height h. Then find the height of a triangular flag if the Area = 63mm2 and the base is 9 mm.

Question

The area of a triangle is found using the formula A = 1/2 bh, where b is the base and h is the height of the triangle.  Solve this formula for the height h.  Then find the height of a triangular flag if the Area = 63mm2 and the base is 9 mm.

anonymous · Answer

A = 1/2 bh
63mm^2 = 1/2 (9mm) h
63mm^2 = 4.5mm (h)
divide both sides by 4.55mm so you would get...
14mm = h

check:

A = 1/2 (9mm)(14mm)
A = 63mm^2