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17. Perimeter and Area of Plane Figures
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Q13 of 97 Page 786

Each side of an equilateral triangle is 6√3 cm. The altitude of the triangle is

Given: Side of an equilateral triangle = 6√3 cm



Height of equilateral triangle =



= 9 cm2

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11

The area of an equilateral triangle is 4√3 cm2. Its perimeter is

12

Each side of an equilateral triangle is 8 cm. Its area is

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The height of an equilateral triangle is 3√3 cm . its area is

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The base and height of a triangle are in the ratio 3 : 4 and its area is 216 cm2. The height of the triangle is

Questions · 97
17. Perimeter and Area of Plane Figures
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