Identify the lateral area and surface area of a right cone with radius 6 cm and slant height 13 cm.

The lateral surface area is about = 269.747749 m squared

The surface area is about  = 382.787749 m squared

Step-by-step explanation:

L = 245 cm2 ; S = 358.1 cm2

Step-by-step explanation:

The lateral area of a right cone with radius r and slant height l is L=πrl.

The figure shows a right cone.

Apply the formula for the lateral area of a right cone L=πrl.

Substitute the known values for the radius r=6 cm and the slant height l=13 cm.

L=π(6)(13)=78π

Use a calculator to approximate. Round your answer to the nearest whole number.

L≈245

The lateral area of the cone is 245 cm2.

The surface area of a right cone with lateral area L and base area B is S=L+B, or S=πrl+πr2.

Substitute the given value for the radius r=6 cm into the formula for the area of a circle, B=πr2.

B=π(6)2=36π

Therefore, the base area is 36π cm2.

To calculate the surface area of the cone, substitute the known values into formula for surface area.

S=78π+36π=114π

Use a calculator to approximate. Round your answer to the nearest tenth.

S≈358.1

Therefore, the surface area of the cone is about 358.1 cm2.

51

step-by-step explanation:

73-22=51 the   mass number minus the amount of protons gives you the amount of neutrons