Answer:
lateral surface area of cone =
where, l = slant height, and r = radius
then
y=110 because the angles correspond
x=55 because they are verticals angles and are congruent so you set them equal to each other
Explanation:
2x=110
x=55
question 4
using sine rule:
question 5
using cosine rule:
10
Step-by-step explanation: