A conical tent is made by stitching 12 triangular pieces of cloth of two different colours red and white alternatively, each piece measuring 10cm,20cm and 20cm , then how much cloth of red colour is required to make a conical tent.
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Step-by-step explanation:
area of triangle by herons formula=25√15
since there's 12 triangle and two colours so we have 6 triangle of each colour
area of red colour clothe=25√15×6=150√15
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