Question

plz show me step by step and briefly!very much urgent!!!!!

Answer 1

first find the area of one piece of cloth. Then multiply the answer by twelve. Now your answer is ready. please like the answer bro

Answer 2

so easy 
each triangle is 50 x 20 x 50
it is a isosceles triangle 
to find height we can divide the triangle in 2 halves , therefore the triangle will be split into 50 x 10 x H
by pytha formula we can find H 
50 is hypotenuse 
10 is leg 
h is leg 
therefore
$H^{2}$ + $10^{2}$ =  $50^{2}$  
$H^{2}$ = $50^{2}$  -  $10^{2}$ 

$H^{2}$  = 2400
h = 20$\sqrt{6}$
now we can find the area of triangle and multiply it by 12
1/2 *20 * 20$\sqrt{6}$
= 5878.775383$units^{2}$