Name: ________________________ Class: ___________________ Date: __________
ID: A
Classwork for Wednesday Nov. 9th
1. What is the formula for the area of a
4. Find the shaded area.
trapezoid
parallelogram
triangle
circle
5. Find the area of the trapezoid below. Geom 10.0
2. Find the area of parallelogram ABCD.
3. Find the area of the trapezoid below. Geom 10.0
6. Find all the missing sides, then find perimeter.
1
Name: ________________________
ID: A
7. What is the area, in square units, of the trapezoid
below? Geom 10.0
10. Find the area of the triangle formed by the
coordinates: T(1,6), R(7,1), I(3,1)
Geom 17.0
8. Mark the height of each trapezoid. Then find the
area for each.
11. The shaded area is _____ − _____ = _____
ÊÁ b + b ˆ˜
2¯
Ë 1
A=
h
2
ÊÁ b + b ˆ˜
2¯
Ë 1
A=
h
2
12. Find the shaded area formed by a trapezoid with
bases 10 inches and 20 inches. The circle has a
diameter of 12 inches.
10
9. Find the area of parallelogram ABCD.
Geom 10.0
20
a. 360 − 12π b. 360 c. 180 d. 180 − 36π
13. Find the base of a triangle with a height of 4 inches
and an area of 32 square inches.
2