Question

the total surface area of a right circular cylinder of radius 7 cm is 1188 CM square find its height ​

Answer 1

Hope this answer will be helpful

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Answer 2

The height of right circular cylinder is 20 cm.

Step-by-step explanation:

We have been given that

r = 7 cm

SA = 1188 cm²

h = ?

The total surface area of a cylinder is given by

SA = 2πrh + 2πr²

SA = 2πr(r + h)

Substituting the known values

$1188=2\cdot\frac{22}{7}\cdot7(7+h)\\\\1188=44(7+h)\\\\7+h=\frac{1188}{44}\\\\7+h=27\\\\h=20$

Therefore, the height of right circular cylinder is 20 cm.

#Learn More:

The lateral surface area of a hollow cylinder is 1188 CM squareit is cut along its height to obtain a rectangle find the perimeter of the rectangle if height of the cylinder is 44 CM​

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