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The Basics
Formulas
Figure it Out
More questions!
Ch. 8
100
What is a composite figure?
A figure made from two or more geometric figures (or shapes).
100
What is the area of a square?
a= b x h
100

A figure composed of a rectangle and a square. Rectangle has a base of 6cm and a height of 8cm. The square has a base of 3cm and a height of 3cm. Find the area.

57cm squared

100

What is area?

How many space a figure takes up.

100

What are the two equations for the circumference of a circle?

C=pi(d) and C=2(pi)(r)
200
How do you know if a figure is composite?
If it is made up of two or more geometric figures or shapes.
200
What is the area of a rectangle?
a=l x w
200

A figure is composed of a rectangle and a triangle. The length of the rectangle is 5m and the height is 4m. The base of the triangle is 5m and the height is 4m. Find the area.

30m2

200
What is the first step in finding the area of a composite figure?
Separating the figure into simpler figures
200

Find the Circumference of a circle with the diameter of 14 ft. Use 22/7 for pi

44ft

300
How do you find the area of a composite figure?
Find the area of each figure and add them together.
300

What is the area of a triangle?

A=1/2bh or b*h/2

300

A figure is composed of a rectangle with a triangle on each end. The base of the rectangle measures 12in and the height measures 3in. The base of EACH triangle is 2in and the height of each triangle is 6in. Find the area.

54in squared

300

!!DAILY DOUBLE!! Martina designed a painting on a canvas for an art project. The painting consists of 4 large circles with a radius of 6 inches. What is the total area of all four circles.

452.16 inches squared

300

Find the PERIMETER of this composite shape. It is a right triangle with the base of 12cm and a height of 6cm. There is a semi-circle that sits on the longest edge of the triangle with a diameter of 13 cm. 

38.41cm

400
True or False? A composite figure must have an even number of sides?
False
400

What is the area of a circle?

A=pi r squared

400

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.

72.52ft squared

400

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 white boards?

41.5ft.

400

Find the area of a circle with a diameter of 3 in.

about 7.065in squared or 7in squared

500
True or False? A composite figure can have a maximum of 3 shapes.
False
500

What is the area of a semi-circle?

A=pi r squared divided by 2

500

A figure is composed of a rectangle, a triangle, and a semi-circle. The base of the rectangle is 5cm 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.

44.62cm squared

500

Ms. Akers wants to build one large square table with 4 smaller rectangle foldable flaps. The square table is  measured in feet. The measurement is 3ft for the length and 3ft for the height. One rectangle flap has a length of 3ft and a height of 2 feet. Find the area of the table if all the flaps are up.

33 ft. squared

500

Find the area of a semi-circle with the radius of 12in.

about 226.08in squared or 226in squared