a. The area of a trapezoid is 20m the larger base is 55dm and the smaller base is 45dm. Find the height of trapezoid.
b. Find the average of two bases of the trapezoid, known that: the area of trapezoid is 7 m2 and its height is 2m.
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The sum of angles at the base of a trapezoid is equal to 90 độ. Prove that the segment that connects the mid points of the bases is equal to a a half difference of the bases.
given isosceles trapezoid ABCD (AB//CD), AC is perpendicular to BD and the length of the height of the ABCD is 7 cm. What is the area of the isosceles trapezoid ABCD?
The area of the trapezoid below is 100 m2. Find x
Answer: x =
Let ABCD be a trapezoid with bases AB, CD and O be the intersection of AC and BD. If the areas of triangle OAB, triangle OCD are 16cm2, 40cm2respectively and M is the midpoint of BD, then the area of the triangle AMD is .........cm2.
Let ABCD be a trapezoid with bases AB, CD and O be the intersection of AC and BD. If the areas of triangle OAB, triangle OCD are 16cm2, 40cm2respectively and M is the midpoint of BD, then the area of the triangle AMD is .........cm2.
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Let ABCD be a trapezoid with bases AB, CD and O be the intersection of AC and BD. If the areas of triangle OAB, triangle OCD are 16cm2, 40cm2respectively and M is the midpoint of BD, then the area of the triangle AMD is .........cm2.
đựng đường cao 2 bên áp dụng 2 tam giác đồng dạng suy ra tỉ số diện tích
đáp án 22 cm2
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find the volume of a pyramid such that the base area is 100cm2 and the height is 9cm
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- Trans: Tìm thể tích của hình chóp sao cho diện tích đáy là 100cm2 và chiều cao là 9cm.
\(S=\dfrac{1}{3}.h.S_{\text{Đáy}}=\dfrac{1}{3}.9.100=300(cm^3)\)
Vậy \(S=300cm^3\)
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The volume of the pyramid:
\(\dfrac{1}{3}.100.9=300\left(cm^3\right)\)
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The area of the trapezoid below is 100 m2. Find x
Let ABCD be a trapezoid with bases AB, CD and O be the intersection of AC and BD. If the areas of triangle OAB, triangle OCD are 16cm2, 40cm2respectively and M is the midpoint of BD, then the area of the triangle AMD is .........cm2.
Bạn nào giúp mk vs!!!
