Composite Figures Unit Test Review

Remember to use your Formula Sheet!!!

Our Estimate for ℼ is 3.14

1)

Find the formula for
circumference of a
circle and write it down

2)

Calculate the
circumference of a ½
circle. What is the
radius of this circle?

3)

Label the outside (or
external) sides of the
image with side lengths

4)

Add all the lengths
together using
DESMOS

Perimeter

1)

Find the formula for
area of a circle and
write it down

2)

Calculate the area of a
½ circle. What is the
radius of this circle?

3)

Calculate the area of a l
x w … 10 x 4 rectangle

4)

Add the areas together.
How many sections are
there? Multiply.

Area

Area of Shaded Region

1)

Find and write down
formulas for area of
triangle and circle.

2)

Label your pictures with
side lengths. The
diameter of this circle is
20…what is the radius?

3)

Calculate both areas

4)

The area of the triangle
from the circle…round
to the nearest 10th

Perimeter

The hypotenuse of the triangle is found
using the Pythagorean theorem:

1)

Label the missing
side lengths on
your paper

2)

Use the
Pythagorean
Theorem to
calculate the
missing
hypotenuse

3)

Add all
outside/exterior
sides together

Area

1)

Find the formulas
for area of
triangles and
rectangles and
write them down

2)

Label l & w on the
rectangle, and b &
h on the triangle

3)

Calculate the two
areas

4)

Add the areas
together