Question

an umbrella is made by stiching 12 triangular pieces of cloth each measuring 50×50×20cm find the area of cloth used in it​

Answer 1

Answer:

2400√6 cm^2

Step-by-step explanation:

s= a+b+c/2

s= 50+50+20/2

s= 60

Area = √60 (60-50) (60-50) (60-20)

        = √60*10*10*40

        = 200√6 cm^2

Cloth of each design required = Area of 12 triangular pieces

                                                  = 12* 200√6 = 2400√6 cm^2