we know that
The formula of the surface area of the cone is equal to

where
SA is the surface area
r is the radius of the cone
l is the slant height
in this problem we have

Solve the formula for l

substitute the values

therefore
<u>the answer is</u>
The slant height is 
B because that is where they intersect
Answer:
61 Students.
Step-by-step explanation:
So you need to find 20% of 305. You can do this by dividing by 5.
305 divided by 5 equals 61.
If you have questions, ask please :)
Answer:
Step-by-step explanation:
quadratic equation is 4(x+2)(x+5)=0
4(x²+5x+2x+10)=0
4x²+28x+40=0
Answer:
tell ur teacher am not sure about the question