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It is 0.5(5 + 7)*3 = 6*3 = 18 km2

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Coleman Lesch

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Q: What is the area of a trapezoid with a base of 7 and 7 the height of 3?
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What is the area of a trapezoid with bases of 3 yards and 7 yards and a height of 3 yards?

The area of a trapezoid is 1/2 * (base 1 + base 2) * height, so the area of this trapezoid = 0.5*(3+7)*3 = 15 square yards


A trapezoid has a height of 3cm the first base is 5cm and the second base 3cm what is the area?

Area of trapezoid: 0.5*(5+3)*3 = 12 square cm


What is the area of a trapezoid with base lengths 3 feet and 9 feet and a height of 4 feet?

The answer is 24.


What is the area of a trapezoid with a length of 4 feet and a base of 8 feet and a height of 3 feet?

24 feet


What is the area of a trapezoid with a length of 7 height of 3 and a width of 12?

Area of a trapezoid = 0.5*( sum of parallel sides)*height


How do you calculate the surface area of an trapezoid?

A trapezoid is a two-dimensional shape, so it doesn't have surface area. The AREA of a trapezoid is: (Base1+Base2) X Height Divided/Over 2. For example: Imagine a trapezoid. Base 1 (top) measures 6 and Base 2 (bottom) measures 8. The height of the trapezoid from B1 to B2 is ''3''. Procedure: (6+8)x3 Divided by 2 14x3 Divided by 2 42 Divided by 2 Ans: 21^2


How do you find the base area of a triangular prism if you already have the volume and the height?

Volume = 1/3 * Base area * Height So Base area = 3 * Volume / Height


What is the shape's area when the triangle base is 5 the trapezoid base is 3 and the height is 5?

Without information aboutthe top of the trapezium andthe relative positions of the triangle and trapeziumit is not possible to provide an answer.


What is height of trapezoid with area of 9 and bases of 2.4 and 3.6?

To find the height of a trapezoid with the given area and bases, you can use the formula for the area of a trapezoid: A = (1/2)(b1 + b2)(h), where A is the area, b1 and b2 are the bases, and h is the height. Rearranging the formula, we can calculate the height as: h = 2A / (b1 + b2). Therefore, the height of the given trapezoid is: h = 2(9) / (2.4 + 3.6) = 2.25 units.


How do you find the base of a parallelogram when the area is 36ft2 and the height is 3ft?

Area = Base*Height so Base = Area/Height = 36/3 = 12 feet


How do you work out area of a triangular prism?

The area of such a prism is Bh/3, where B is the base area, and h is the height (perpendicular to the plane that contains the base area).The area of such a prism is Bh/3, where B is the base area, and h is the height (perpendicular to the plane that contains the base area).The area of such a prism is Bh/3, where B is the base area, and h is the height (perpendicular to the plane that contains the base area).The area of such a prism is Bh/3, where B is the base area, and h is the height (perpendicular to the plane that contains the base area).


What is the height of a triangle if its area is 15 square inches and its base is 3 inches?

area = base x height ÷ 2 ⇒ height = 2 x area ÷ base ⇒ height = 2 x 15 ÷ 3 = 10 inches.