The product of the height of a trapezoid and its two bases is 18 square centimeters and 25 square centimeters respectively. What is the area of the trapezoid?
(18 + 25) △ 2 = 43 △ 2, = 21.5 (square centimeter). A: the area of this trapezoid is 21.5 square centimeter
RELATED INFORMATIONS
- 1. The area of the new trapezoid is increased by 76 square centimeter if the bottom is lengthened by 1 / 4 and the height and upper bottom remain unchanged
- 2. The figure on the right is a trapezoid. If the bottom is extended by one fourth, and the upper bottom and height remain unchanged, the new trapezoid is 76 square centimeters larger than the original trapezoid. Calculate the area of the original trapezoid
- 3. The ratio of the top to the bottom of a trapezoid is 3 / 5. The top is 1 meter shorter than the bottom, and the bottom is 25% higher. What is the area of this trapezoid?
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- 9. Let the vertex coordinates of ladder ABCD be a (- 1,2), B (3,4), D (2,1) and ab parallel to DC, the length of AB = 3 times the length of CD, then the coordinate of C is
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- 11. For a trapezoid, the product of its height and upper bottom is 15 square centimeters. The product of its height and lower bottom is 21 square centimeters. What is the area of this trapezoid?
- 12. The height of a trapezoid is 7 cm. The product of it and the upper bottom is 78.4, and the product of it and the lower bottom is 178.4. So the area of this trapezoid is______ Square centimeter
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- 16. There is a point P in the square ABCD with side length 2. Find the minimum value of PA + Pb + PC. please write the procedure. 7. Ab There is a point P in the square ABCD with side length 2. Find the minimum value of PA + Pb + PC. please write the procedure 7. AB and AC are the diameter chord of circle O respectively, D is the point on inferior arc AC, De is perpendicular to ab at point h, intersecting circle O at point E, intersecting circle AC at point F, P is a point on extended line of ED
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- 18. Let p be any point on the inferior arc ad of circumscribed circle of square ABCD, then the ratio of PA + PC to Pb is______ .
- 19. It is known that: as shown in the figure, in square ABCD, point E is a point on the side of AD, and the intersection diagonal of CE is BD at point P, PE = AE. (1) verification: CE = 2ed. (2) when Pb = 6cm Please teach me the way I understand, Just a second question
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