1. Use Euler's formula to find the missing number.

Vertices: 15

Edges: 24

Faces:?

• 9

• 10

• 11

• 12

7. What is the surface area of a conical grain storage tank that has a height of 43 meters and a diameter of 14 meters? Round the answer to the nearest square meter.

• 1,100 square meters

• 1,112 square meters

• 2,507 square meters

• 2,605 square meters

8. The lateral area of a cone is 612 cm2. The radius is 43 cm. What is the slant height to the nearest tenth of a centimeter?

• 4.5 cm

• 7.1 cm

• 9.1 cm

• 14.2 cm

Question

Mathematics

Jazlyn Shelton

4 June, 12:58

1. Use Euler's formula to find the missing number.

Vertices: 15

Edges: 24

Faces:?

• 9

• 10

• 11

• 12

7. What is the surface area of a conical grain storage tank that has a height of 43 meters and a diameter of 14 meters? Round the answer to the nearest square meter.

• 1,100 square meters

• 1,112 square meters

• 2,507 square meters

• 2,605 square meters

8. The lateral area of a cone is 612 cm2. The radius is 43 cm. What is the slant height to the nearest tenth of a centimeter?

• 4.5 cm

• 7.1 cm

• 9.1 cm

• 14.2 cm

+4

Answers (1)

Know the Answer?

Kamora Sparks · Answer 1

V + f = a + 2

15 + f = 24 + 2

f = 26 - 15

f = 11 (11 faces)

height = 43 m

d = 14m

r = 7 m

A = π. r. g

g² = r²+h²

g² = 7²+43²

g² = 1898

g = / / 1898

g ~ 43,56 m

A = π. r. g

A = π.7.43,56

A = 304,92 π

A = 304,92*3,14

A = 957,45 m² (área lateral)