If you can solve all parts I will give brainliest (also give strategy) part a. Gretchen is going to make a witch’s hat for Halloween. Her pattern consists of a right circular cone without a base attached to a circle with a hole cut out of the middle, as shown in attached pic. The hole is congruent to the base of the cone.

Gretchen plans to make the conical portion of her hat 18 inches tall with a base circumference of 5pi inches. What is the slant height of the conical portion of the witch hat if made according to Gretchen’s plan? Express your answer as a decimal to the nearest tenth.

part b. Gretchen’s completed hat looks great. Unfortunately, when she tries to put her hat on, she realizes it is too small! When she double checks the dimensions, she finds that they are exactly as she had planned so she must have measured incorrectly in the beginning. Not wanting to waste the great looking hat, she decides to use it to put candy in. How many cubic inches of candy will exactly fill the conical portion of the hat? Express your answer as a common fraction in terms of pi.

part c. If the brim of Gretchen’s hat is a ring that extends 4 inches out from the base of the conical portion, what is the area of the brim in square inches? Express your answer in terms of pi.

part d. Pick one question above and describe your strategy for solving.