Question

(Geometry question, HELP!) Use figure to solve the next 3 questions (in comments)

1. if line AB measures 18 inches, calculate the area of the semicircle ABC in square inches.

2. If line AB measures 25 inches, calculate the area in square inches.

3. If line AB measures18 inches, calculate the circumfrence in inches.

Answer 1

For #2, does it mean the area of the whole circle, or the semicircle again like in #1?

Answer 2

The relevant formulas you need are area = π(radius)^2, circumference = π(diameter).

Answer 3

HELPPP

Answer 4

which one you need help wid ?

Answer 5

All three, I have no clue how to do these

Answer 6

okkk do u knw formula for area of circle ?

Answer 7

pie r squared

Answer 8

so #1 is 18 pie?

Answer 9

whats r, in ur formula pie r squared ?

Answer 10

radius

Answer 11

thats right !