Answer:

Step-by-step explanation:
we know that
The surface area of the cone is given by the formula

where
r is the radius of the base
l is the slant height
we have

substitute


10.7
23.7-10=10
that r the maths
Answer:
m = - 5
Step-by-step Explanation:

Answer: 2nd answer
Step-by-step explanation:
Kevin should have used a 4 in the numerator because there are 2 red sections and 2 green sections.