What is the surface area of the cone to the nearest whole number? use 3.14 for π.

2,198 m2
3,429 m2
2,813 m2
1,231 m2


What is the surface area of the cone to the nearest whole number? use 3.14 for π. 2,198

Answers

The answer to this should be 2888.8

sorry about the quality im not good at writing on computer
What is the surface area of the cone to the nearest whole number ?  use 3.14 for π
Hello!

We know that surface area of a cone = pi(r^2) + pi(rL) where L is the Slant height and R is the Radius and h is Height.
So, 30 is height, and half of 32 is the radius, then we just plug and chug,

An in Short, Your Answer would be 2512, Option "A"

Hope this Helps! :)

The answer is (A) 2,512 m^2

1130.973355 is the answer

Step-by-step explanation:

pi10(10+sqrrt((24^2)+(10^2)))

31.416(10+sqrrt(576+100))

31.416(10+sqrrt(676))

31.416(10+26)

31.416(36)

1130.976

2813 sq.m.

Step-by-step explanation:

Height of cone = 48 m

Diameter of cone = 28 m

Radius of cone = \frac{Diameter}{2} = \frac{28}{2}=14 m

Slant height l = 50 m

Total Surface area of cone = \pi r l +\pi r^{2}

                                              = 3.14 \times 14 \times 50 +3.14 \times 14^{2}

                                              = 2198 +615.44

                                              = 2813.44 m^2

Thus the surface area of the cone to the nearest whole number is 2813 sq.m.

Hence Option C is correct.

We know, Surface area of a cone = πr² + πrl
s = 3.14 * (14)² + 3.14 * 14 * 50
s = 615.44 + 2198
s = 2813.44 m²

In short, Your Answer would be Option C

Hope this helps!


Do you know the answer?

Other questions on the subject: Mathematics

Mathematics, 21.06.2019, dtilton2003
we have three similar triangles, because each has a right angle and shares an angle.   let's write the angles in order: opposite to short leg, long leg, hypotenuse.cab simil...Read More
2 more answers