Question

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.​

Answer 1

Answer:

sides of triangle 10,20,20

half parimeter of triangle=50/2=25

now we can find the area of triangle by herons formula

area=25√15

since there's 12 triangle and two colours so we have 6 triangle of each colour

so area of red colour clothe =25√15×6 =150√15 ans

Step-by-step explanation: