A square based tent house has length of base 20m and it is in the form of cuboid upto the height of 10m and then a pyramid with equal base. The tent house contains4800m3 air. Find the total cost of canvas required to make the tent at the rate of Rs 15 per square meter.
Answers
Answer:
the answer is Rs 18997.14
Step-by-step explanation:
1. Volume of Tent = Volume of cuboid + Volume of pyramid
or,. 4800 = 20 × 20 × 10 + 1/3 × 20 × 20 × h
or,. 4800 = 4000 + 133.33h
or, 4800 - 4000 = 133.33h
or,. 800/133.33 = h
:; h = 6 m
_________
Slant height of pyramid = √( 6 )² + ( 10 )²
_______
= √ 36 + 100
= √ 136
= 11.66190379 m
Total Surface Area For canvas = 4 ( L × B ) + 2al
= 4 ( 20 × 10 ) + 2 × 20 × 11.66190379
= 800 + 466.4761516
= 1266.476152
Rate Of Canvas = Rs 15/ M²
cost Of Canvas = 1266.476152 × Rs 15
= Rs 18997.14
:; The total Cost of Canvas Is Rs 18997.14
Step-by-step explanation:
answer: 18997.14 though that it is helpful for you and rate me please by giving star
