8.
What is the area of this polygon?
The area is
108
units squared.
9.
We have a pie with a radius of 6 inches.
What is the area of this pie?
Use 3.14 for
and round your answer to the nearest whole number.
37 in2
113 in2
95 in2
59 in2
10.
We ate one piece of piece. We will estimate the area of the piece of pie using
which has a base of 2 and a height of 6.
How much pie do we have left?
Show or explain your work.
Imagine the piece of pie you had was like a triangle. To find out how much pie was in that piece, we multiplied the base, which is how wide it is, by the height, which is how tall it is, and then divided by 2. That gave us an estimate of 6 square units for the piece of pie.
Now, if you had one piece of pie and you ate one piece, that means you don't have any pie left. It's all gone!
11.
How much pie do we have left?
We have about
0
in2 of pie left.
12.
Draw a triangle XYZ, where
, side
and
. Label your triangle.
You can use a ruler and protractor to draw your triangle by hand or you can use GeoGebra.
Use
to answer the follow questions.
13.
What is the measure of
?
The measure of
is
degrees
14.
What is the measure of
?
The measure of
is
degrees.
15.
What is the measure of angle Z?
The measure of angle Z can be found by subtracting the measures of angles X and Y from 180 degrees.
Angle Z = 180 - (measure of angle X + measure of angle Y) degrees.