Answer:
The volume of a cylinder is
.
Step-by-step explanation:
We have,
Height of cylinder, h = 7 cm
Diameter of cylinder, d = 18 cm
Radius, r = 9 cm
It is required to find volume of cylinder. The formula of the volume of cylinder is given by :

So, the volume of a cylinder is
.
<u>To prove the trigonometric equation:</u>


We know that
, substitute this in place of 1.

Multiply each term of the first term with each term of the 2nd term.

Group like terms together.



= LHS
RHS = LHS

Hence proved.
160,000. because all we do is round the thousand place up since its above 5
Wym donate you can keep doing these and this give people free points btw thank for the points luv