What does "circumference" mean? #1

Does this picture show the diameter or radius of a circle? #2

What is the area of a circle with a diameter of 16 cm? #3

What does "area" of a circle mean? #4

A circle has a radius of 6 inches. What is the area of the circle? (Best Choice) #6

*** Write down in notes*** If the area of a circle is known,  find the radius of a circle if its area is 24. Round your answer to the nearest tenth. $$r=\sqrt{\frac{Area}{\pi}}$$  #7

The diagram shows one way to develop the formula for the area of a circle. Pieces of a circle with radius r are rearranged to create a shape that resembles a parallelogram.

Since the circumference of the circle can be represented by 2πr, and the area of a parallelogram is determined using A = bh, which represents the approximate area of the parallelogram-like figure? #8

Which statements are true regarding the area of circle D? Select two options. #9

Find the length of the radius given the arc length of arc AB shown. Round your answer to the nearest tenth. #11

Find the arc length. Round to the nearest tenth. DO NOT FORGET YOUR UNITS. #12

What is the Arc Length equation? #16

is the formula for? #20

What is the area of the shaded sector? Round your answer to the nearest hundredth. #21

$$USE\ S=\frac{\theta2\pi r}{360\degree}\ to\ find\ \ \theta first$$  Find the area of the dark blue sector shown at the left. The radius of the circle is 4 units and the length of the arc (the curved edge of the sector) measures 7.85 units. Express answer to the nearest tenth of a square unit. #22

What does the 'a' stand for in the following formula? #24

find the area of the kite using the formula: A = 1/2 * d₁*d₂. #25

Find the area. #26

What is the area? #28

Find the area of the regular polygon. #30

Find the area of the following polygon. #31

Which definition best matches the term population density? #34

In which state is air pollution more likely to be a bigger problem? Vermont or Rhode Island? #35

$$\frac{17,620}{1}=\frac{P}{468},\ cross\ multiply$$  There are approximately 17,620 people per square mile in New York City. If New York City is 468 square miles, approximately how many people live in New York City? #37