In a parallelogram the base is double the height and the area is 512 cm2 then its base is …………………… cm
A) 19
B) 13
C) 16
D) 32
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The curved surface area of a right circular cone is 12320 cm^2. If the radius of its base is 56cm, then find its height.
CSA (cone) = πrl = 12320 \(\frac{22}{7}\) × 56 × l = 12320 l = 70 cm h = \(\sqrt{70^2-56^2}\) = 42 cm
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The area of a parallelogram whose base is ‘b’ units, height is ‘h’ units (in sq. units)
Correct option is (A) bh Area of a parallelogram = Base \(\times\) Height = bh square units
2 Answers 1 views
The area of a parallelogram whose base is ‘b’ units, height is ‘h’ units (in sq. units)
2 Answers
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C) All rhombus are parallelogram D) All trapeziums are parallelogram
Correct option is (D) All trapeziums are parallelogram All rectangles, all squares and all rhombus are parallelogram but all trapeziums are not parallelogram.
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The radius of the base and height of a cone are 5 cm and 12 cm then its slant height
Correct option is (C) 13 cm Slant height of cone is \(l=\sqrt{r^2+h^2}\) \(=\sqrt{5^2+12^2}=\sqrt{25+144}\) \(=\sqrt{169}\) = 13 cm
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The radius of the base and height of a cone are 5 cm and 12 cm then its slant height
2 Answers
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If a triangle and a parallelogram are on the same base and between the same parallels then, area of the triangle is ……………. the area of parallelogram.
Correct option is C) half
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Area of a parallelogram is 64 cm^2 with base 16 cm. Then its height is
Correct option is B) 4 cm
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Area of parallelogram is 50 cm^2 and a diagonal is drawn to it, then the area of triangle so formed is cm^2
Correct option is C) 25
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Area of triangle is 120 cm^2 and its base is 15 cm then its height is ………………. cm.
Correct option is A) 16
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