Question

A skirt is made by stitching 10 triangular pieces of cloth of two different colors, each piece measuring 20 cm, 50cm and 50 cm. How much cloth of each color is required for the skirt

Answer 1

area of one strich is 20cm * 50cm * 50cm
is equal to 5000cm3
so, it shoud be multiplied by 10 to get it
50000 is the ans of this question

Answer 2

Answer:

Assume that 1 colour is 5 pieces

A  of 1 piece of cloth; (using heron's formula)

s= 50+50+20/2= 120/2= 60

a= underroot 60*10*10*40 = under root 3*2*10*10*10*2*2*10

= 10*10*2 under root 6= 200^6

Area of 5 pieces = 200^6*5= 1000^6= 1000*2.449=2449 cm square