Find the volume of the hemisphere with a radius of 7 inches. round your answer to the nearest tenth.

718 cubic inches

Step-by-step explanation:

The formula for a sphere is . A hemisphere is half this value. We will find the volume and then divide it in half. We substitute r=7 inches.

We divide 1,436 by 2 for the volume of a hemisphere. V= 718 cubic inches

the correct option is 2.

step-by-step explanation:

according to the given information triangle abc is a right angle triangle with right angle at a. segment ab is 5 and segment ac is 7. point d is on segment bc and angles adb and adc are right angles.

it is given that triangles abd, cad, and cba are similar.

two triangles are similar if their corresponding sides are proportional.

in triangle cba, using pythagoras theorem

                      )

triangle abd and cba are similar,

                            (2)

triangle cad and cba are similar,

                      )

using (1), (2) and (3), we get

hence proved.

therefore option 2 is correct.