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8th Grade MathChapter 9b Review
Chapter 9b Review
1) Give the formulas for:a) area of a circle
b) circumference of a circle
Chapter 9b ReviewAnswer
1) Give the formulas for:a) area of a circle
b) circumference of a circle
A = r2
C = d
Chapter 9b Review
2) Give the formulas for:a) area of a triangle
b) area of a trapezoid
Chapter 9b ReviewAnswer
2) Give the formulas for:a) area of a triangle
b) area of a trapezoid
bhA = 2
(b1 + b2)hA = 2
Chapter 9b Review
3) Find the perimeter and area of a rectangle with l = 12 m and w = 4 m.
Chapter 9b ReviewAnswer
3) Find the perimeter and area of a rectangle with l = 12 m and w = 4 m.
Perimeter = 32 mArea = 48 m2
Chapter 9b Review
4) Find the perimeter and area of this triangle.
8 in
5 in6 in
10 in
Chapter 9b ReviewAnswer
4) Find the perimeter and area of this triangle.
Perimeter = 24 inArea = 25 in2
8 in
5 in6 in
10 in
Chapter 9b Review
5) Name the shape. Find the surface area.
6 cm
10 cm3 cm
Chapter 9b ReviewAnswer
5) Name the shape. Find the surface area.
Rectangular prismSA = 216 cm2
6 cm
10 cm3 cm
Chapter 9b Review
6) Find the volume.
6 cm
10 cm3 cm
Chapter 9b ReviewAnswer
6) Find the volume.
volume = 180 cm3
6 cm
10 cm3 cm
Chapter 9b Review
7) Name the shape. Find the surface area.
9 m
6 m
Chapter 9b ReviewAnswer
CylinderSA = 226.08 m2
9 m
6 m
7) Name the shape. Find the surface area.
Chapter 9b Review
8) Find the volume.
9 m
6 m
Chapter 9b ReviewAnswer
V = 254.34 m3
9 m
6 m
8) Find the volume.
Chapter 9b Review
9) Name the shape. Find the surface area.
10 in
4 in
5 in
2 in1.5 in
Chapter 9b ReviewAnswer
Trapezoidal prismSA = 143.5 in2
9) Name the shape. Find the surface area.
10 in
4 in
5 in
2 in1.5 in
Chapter 9b Review
10) Find the volume.
10 in
4 in
5 in
2 in1.5 in
Chapter 9b ReviewAnswer
V = 67.5 in3
10) Find the volume.
10 in
4 in
5 in
2 in1.5 in
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