15. Find the angle measure indicated. Assume that lines which appear to be tangent are tangent.
HURRY PLEASE

Recall that the angle formed by two tangents is half the difference of the intercepted arc.

Multiply through by 2 to get:

26x+20=49x+10-180+13x+10

Group similar terms to get:

26x-13x-49x=10-180+10-20

-36x=-180

x=5

Step-by-step explanation:

the answer is:

the correct option is the option b.

to calculate the surface area of the right cylinder, we need to use the following formula:

from the picture we know that:

so, substituting and calculting we have:

hence, we have that the correct option is the option b.

have a nice day!

can i know which language is this?