Given:
In the given cone,
Radius of the cone = 7.2 m
Slant height of the cone = 17 m
To find:
The surface area of the cone.
Solution:
The surface area of a cone is:

Where, r is the radius of the cone and l is the slant height of the cone.
Putting
in the above formula, we get




Therefore, the surface area of the given cone is 547.11 square m.
The answer to this problem is b.
Answer:
I think option a is correct answer because consecutive angles are supplementary.
Step-by-step explanation:
do () first
2*1-1
then multiplication
2-1
then subtraction
=1
same reason as above
4 *2 -6
8-6
=2