Question

.. If seven times the curved surface area (A) of a cylinder
is equal to 44 times the product of base radius (r) and
height (h), then what is the formula with subject A?​

Answer 1

Step-by-step explanation:

The area formula is really the formula for the curved surface (that is the 2πrh 2 π r h portion) added to the area of both ends (that is the 2πr2 2 π r 2 portion). If you see the phrase, "area of cylinder base," the writer is referring to the top and bottom ends, not the curved surface between them.

Answer 2

Answer:

A = 2πrh

Step-by-step explanation:

Given,

7 times the CSA is 44 times the product of base radius r and height h.

⇒ 7 * CSA = 44 * r * h

⇒  7 * A = 44 * r * h {∵CSA = A}

⇒ A = (44 * r * h)/7

⇒ A = (2 * 22 * r * h)/7

⇒ A = 2 * (22/7) * r * h

⇒ A = 2πrh

Hope it helps!