Solving for a Variable question.

Question

"The formula for the area of a triangle is A=1/2 bh, in which b represents the length of the base and h represents the height. If a triangle has an area of 430mm(2 squared) and the height is 20mm, what it the measure of the base?" Can you please help me with this?

Answer 1

If the area of the triangle is 430mm(2 squared) then the value of A in the equation A = 1/2*b*h is 430. The height is 20mm so h = 20. We then get the equation 430 = 1/2*b*20 which becomes 430 = 10*b. We want to find the value of b so we divide both sides of the equation by 10 which gives you b = 43. So the measure of the base is 43mm.

Answer 2

430 = (1/2)b(20)

430 = 10h

43 = h