45 circular plates each of diameter 14 cm and thickness 2 cm are placed above one another to form a circular solid .find its total surface area and volume of the cylinder formed
Answers
Answered by
1
Answer:
Step-by-step explanation:
Width of a single plate is 2 centimetre show with the of 45 plates is 45 into 2 which means it is 90cm that is our height
TSA of solid form = 2 Pie×r (r +h)
= 2×22/7×7 (7+90)
=2×22×97
= 44×97 =4268 cm^
Volume of the solid form=pie×r^×h
= 22/7×7× 90
= 22 ×7×90
= 154×90
=1386 cm cube
Hope you like it.
Similar questions