Given your knowledge of the formula for the area of a triangle: 1) CREATE a formula for height (h) and 2) Find the height of a triangle with a base of 8.4" and an area of 29.82 sq.". 

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Area of triangle = ^{1}/_{2} bh ... or A = ^{1}/_{2} bh Let's create a formula for height (h), given the base and area. Simply, solve for h! A = ^{1}/_{2} bh << multiply both sides by 2 >> 2A = bh << divide both sides by b >> h = ^{2A}/_{b} So.... h = ^{2(29.82)}/_{8.4} = ^{59.64}/_{8.4} = 7.1"
