Answer: option c.
Step-by-step explanation:
You need to remember the identity:
The inverse of the tangent function is arctangent. You need to use this to calculate the angle "R":
You know that you need to find the measure of "R" and 
(which is the opposite side) and 
(which is the adjacent side), you can sustitute values into
Then, you get:
Add 8 to 46. Then divide 54/8 to get 6.75 and t=6.75
A and E are corresponding angles so A=E
There are two cones, the area of a cone is base x height divided by 3. in order to find the base, you would need the area of the circle which is π r^2. once you have that, multiple it by the height and divide by three. you will need to find both of the cone’s volumes so you would need to add the two volumes together to find the volume of the entire shape
