Question

An umbrella is made by stiching 8 triangular pieces of cloth of 2 different colours.each measuring 2o,4o,
4o cm . how much of cloth of each colour is required for the umbrella

Answer 1

Semi perimeter =40 m

Area=

$\sqrt{s(s - a)(s - b)(s - c)}$

Therefore,

$\sqrt{40(40 - 20)(40 -40)(40 - 40)}$

$\sqrt{800}$

$\sqrt[20]2$

So this much amount of each colour is required for the umbrella.

Hope this helps u.