Find the area of the semicircle.
Either enter an exact answer in terms of pi or use 3.14 for pi and enter your answer as a decimal. Diameter= 14. PLZ HELP

A = 49/2 pi

Step-by-step explanation:

The diameter is 14 and the radius is 1/2 of the diameter

r =14/2 =7

We want to find the area of 1/2 of the circle

A = 1/2 pi r^2

A = 1/2 pi (7)^2

A = 49/2 pi

7

step-by-step explanation:

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.