the answer is 30
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The area of a triangle is half the base multiplied by the vertical height. It doesn't matter which side we take as the base, so I'll use 6. now the height can never be more than 7, so the maximum area is 0.5 x 6 x 7 = 21 square units. slightly better: Area = 0.5 x 7 x 6 sinø where ø is the angle between the sides of length 6 and 7 maximum value of sin ø is 1. => maximum area = 0.5 x 6 x 7 = 21
A cube has 6 faces (think of dice). Each face is 7 X 7 = 49 in2 Total surface area is 6 X 49 = 294 in2
6*(6/7) = 6*6/7 = 36/7 or 51/7.
6 * ((7 inches) * 7 inches) = 294 inches^2
19