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One bottom of a right angled trapezoid is 10 cm. If the other bottom is reduced by 2 cm, the trapezoid becomes a square. What is the area of the right angled trapezoid（
10 + 2 = 12 cm
Area: (12 + 10) × 10 △ 2 = 110 square centimeter
The length of the right side ab of the isosceles right triangle ABC is 20 cm. What is the area of the isosceles right triangle ABC?
The right side of an isosceles right triangle is both the height and the bottom of the triangle
∴S△abc=ab*ab/2=200cm²
Make three isosceles right triangles with each side of triangle ABC outward. If the area of this isosceles right triangle satisfies S1 + S2 = S3, ask the triangle ABC is
Right triangle
The area expressed with three sides, you can see that meet the Pythagorean theorem!
A right angle trapezoid is 8cm high. If its bottom is shortened to a little, an isosceles right angle triangle will be obtained. The area of the original trapezoid is one fourth of that of the original trapezoid. The area of the original trapezoid is () square centimeter
A right angled trapezoid is 8 cm high. If you shorten its bottom to a little, you will get an isosceles right triangle. The area of the original trapezoid is one fourth of that of the original trapezoid. The area of the original trapezoid is 128 square centimeters
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RELATED INFORMATIONS
- 1. A right angle trapezoid is 8cm high. If you shorten its bottom to a little, you will get an isosceles right triangle. The area of the original trapezoid is one fourth of that of the original trapezoid. The area of the original trapezoid is () square centimeter
- 2. A trapezoid, if the upper bottom increases by 2 cm and the lower bottom decreases by 2 cm, becomes a square with a side length of 5 cm. The area of this trapezoid is______ Square centimeter
- 3. In a set of opposite sides of a square, one side is increased by 16 cm, and the other side is decreased by 11 cm. In this way, it becomes a trapezoid. What is the area of the trapezoid
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- 9. The diagonal lines AC and BD of parallelogram ABCD intersect at point O, and intersect with AB and CD respectively, and then verify with points E and f; OE = of
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