an umbrella is to be made by stitching 8 triangular pieces of cloth with lengths 17cm, 17cm, and 16cm. Find how much cloth is required for the umbrella
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At first find the area of one such triangle with side lengths 17cm, 17 cm and 16 cm, using heron's formula. The area will be 120 cm^2 .
Then multiply the area of one triangle with 8.
120 cm^2 * 8 = 960cm^2 (Ans.)
Then multiply the area of one triangle with 8.
120 cm^2 * 8 = 960cm^2 (Ans.)
Guptarohan02:
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perieter of triangle=Sum of all sides
=17+17+16
=50cm.
To make one umbrella=8pieces
8pieces=50×8
=400cm.
Therefore,400cm. of cloth is required.
=17+17+16
=50cm.
To make one umbrella=8pieces
8pieces=50×8
=400cm.
Therefore,400cm. of cloth is required.
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