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How many sides do you need to know to calculate the area of a trapezoid?
To calculate the area of a trapezoid, you have to know the lengths of three sides because 1/2*(sum of parallel sides)*perpendicular height = area
How do you calculate a parimeter?
That would be "perimeter". The perimeter is the distance around a figure, and it is calculated by adding the lengths of the different sides. For example, for a triangle, add the lengths of the three sides.
Has a trapezoid have three congruent sides?
Not usually.
How long are the sides of an equilateral triangle if the perimeter is 25.2 inches?
An equilateral triangle is going to have three equal sides. The perimeter is the sum of all three sides. To find the answer, divide the Perimeter (25.2 in.) by 3 (three sides) 25.2 in. / 3 = 8.4 in.
How is a triangle similar to a trapizoid?
Both a triangle and a trapezoid are polygons with straight sides. However, a triangle has three sides and three angles, while a trapezoid has four sides and four angles. Additionally, both shapes have interior angles that add up to 180 degrees.
