Circumference
What is the circumference of a circle with a radius of 7 in?
43.96 in
What is the area of a circle with a radius of 4 m?
50.24 sq m
What is a composite figure?
one odd shape made up of several familiar figures
What is the radius of a circle with the area of 78.5
5
What is the circumference of a circle with a diameter of 12 in?
37.68 in
78.5
How do you solve a composite figure problem?
You break the odd shape into lots of familiar shapes. Then you add the areas together.
Mrs. Watson has two whiteboards in her room. One is 3 ft. wide and 8 ft. long. The other is 2.5 ft. wide and 7 ft. long. What is the total area of the shape?
41.5
How much fencing is needed to fence in a circular garden with diameter of 10 yds?
31.4 yds
A lawn sprinkler sprays water 5 feet in every direction as it rotates. What is the area of the sprinkled lawn?
78.5 sq ft
A figure composed of two rectangles. Rectangle one has a base of 6 and a height of 4. Rectangle two has a base of 5 and a height of 4. Find the area.
44
What is the diameter of a circle with a circumference of 28.26
9
How much ribbon will be needed to go around the circular pen holder with a radius of 4 cm?
25.12 cm
A rug has a diameter of 2 feet. How much space does the rug take up on the floor?
3.14 sq ft
A figure is composed of a triangle and a semi-circle. The base of the triangle is 8 and the height is 4. The radius of the semi-circle is 6. Find the area.
72.52
What is the area of a quarter circle with a radius of 3?
7.065
The circumference of a wheel is 9.42 inches. What is the diameter?
3 in
The lens of a telescope has a diameter of 4 feet. What is the area?
12.56 sq ft
A figure is composed of a rectangle, a triangle, and a semi-circle. The base of the rectangle is 3 and the height is 3. The triangle has a base of 3 and a height of 6. The semi circle has a radius of 4. Find the area.
24.28
What is the area of a semicircle with a diameter of 7?
19.2325