Problem 17 of 34geo-017
A parallelogram has side lengths 12 inches and 10 inches. The perpendicular distance between its two 12-inch sides is 8 inches. What is its area, in square inches?
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Solution walkthrough1:29
- Sketch it: 12-inch sides on the bottom and top, 10-inch sides slanted, and inches straight up between them.
- Area of a parallelogram is base times height, where the height is perpendicular to the base.
- Why: cut the triangle off one end and slide it to the other. You get a by rectangle.
- So square inches.
- Traps: and both use the slanted side , and halves the answer as if it were a triangle.