Q:

What is a quadrangle that is not a parallelogram?

A:

Quick Answer

A trapezoid is a quadrangle that is not a parallelogram. A trapezoid is a quadrangle because it has four sides and four internal angles, but it is not a parallelogram because it only has one pair of parallel sides rather than two.

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Full Answer

Each of the two parallel sides is called a base of the trapezoid, and each of the two non-parallel sides is referred to as a leg. The perimeter of the trapezoid is determined by adding the lengths of all four sides together. The formula for the area of the trapezoid requires multiplying the height by the sum of both bases and dividing by two.

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Related Questions

  • Q:

    How many lines of symmetry does an isosceles trapezoid have?

    A:

    An isosceles trapezoid contains a single line of symmetry. A trapezoid is referred to as an isosceles trapezoid when its two non-parallel edges are equal in length.

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  • Q:

    What is the area of a trapezoid?

    A:

    The area of a trapezoid is found by multiplying the average length of the two parallel bases by the height, or 1/2 (b1 + b2) x h. The height is the length of a line connecting one base to the other at a 90-degree angle.

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  • Q:

    What is the formula for finding the volume of a trapezoidal prism?

    A:

    The formula is the length of the prism times the area of the trapezoid, which is one-half times (a+b) times the height; the area is also called the cross-sectional area. "A" and "B" are the two bases of the trapezoid. The bases are the sides that run parallel to one another, which means they never touch.

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  • Q:

    How do you find the height of a trapezoid?

    A:

    Using the area, the height is found by dividing twice the area by the sum of the two bases of the trapezoid. Without the area, the height is found by using the Pythagorean Theorem; right triangles can be formed from the ends of the trapezoid. The slanted edges form the hypotenuses, and the length of the triangle's bottom sides is half of the difference between the two bases.

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