The surface area of a cylinder is given by the formula SA = 2r2 + 2rh, where r is the radius of the cylinder and h is the height of the cylinder. If the surface area of a cylinder with a height of 22 centimeters is 208 square centimeters, then what is the radius of the cylinder?
A.
16 centimeters
B.
2 centimeters
C.
8 centimeters
D.
4 centimeters

answer: b

step-by-step explanation:

m∠abd = m∠dbc

step-by-step explanation:

given : ab bisects ∠dbc

as we know that bisection means ab divides   ∠dbc   in two equal angles named as   ∠dba and   ∠abc

so, m∠abd = m∠dbc  

because ab bisects ∠dbc.

hence , the first statement m∠abd = m∠dbc is true.

x=25tan30=14.43 or the answer is b

4 inches will get you 10.16 centimeters, but you can either do 10.1 or round up to 10.2. good luck and hope this : )