topic 7 review

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Page 1: Topic 7 Review

Composite Figures

NERF BALLGame!

Play!

Page 2: Topic 7 Review

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Page 3: Topic 7 Review

BACK

50 POINTS

ANSWERANSWERV= Bh -> V= lwh

Its parallel cross section is a square!

What is the formula for the volume of a Cube? What is its parallel cross section?

Page 4: Topic 7 Review

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50 POINTS

ANSWERANSWERCylinder -> V=πr2hCone -> V= 1/3πr2h

What are the formulas for the volume of a Cylinder and a Cone?

Page 5: Topic 7 Review

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50 POINTS

ANSWERANSWER

Pyramid -> V= 1/3Bh

What is the formula for the volume of a pyramid?

Page 6: Topic 7 Review

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50 POINTS

ANSWERANSWER

An apex!

What do you call the top point of a cone or a pyramid?

Page 7: Topic 7 Review

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50 POINTS

ANSWERANSWER

It will be a triangle!

A cone gets cut by a plane perpendicularly to its base. What shape will be its perpendicular cross section?

Page 8: Topic 7 Review

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50 POINTS

ANSWERANSWER

3 times!

How many times does a cone fit inside a Cylinder of the same radius and height?

Page 9: Topic 7 Review

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50 POINTS

ANSWERANSWERParallel-> CirclePerpendicular -> Rectangle

What are the parallel and perpendicular cross sections

of a cylinder? Draw them.

Page 10: Topic 7 Review

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50 POINTS

ANSWERANSWERParallel -> circlePerpendicular -> Triangle

What are the parallel and perpendicular cross sections

of a cone?

Page 11: Topic 7 Review

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100 POINTS

ANSWERANSWER

A Sphere.

What solid will you get if you rotate a circle around an

axis?

Page 12: Topic 7 Review

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100 POINTS

ANSWERANSWER

A Torus (Donut)!

What solid will you get if you rotate this circle around an

axis?

Page 13: Topic 7 Review

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100 POINTS

ANSWERANSWERA cylinder with a

cylindrical hole in the middle.

What solid will you get if you rotate this rectangle around the axis?

Page 14: Topic 7 Review

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100 POINTS

ANSWERANSWER

None of them.

The four solids below have the same radius and height. Which ones have the same volume?

Page 15: Topic 7 Review

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100 POINTS

ANSWERANSWER

55, 296 cm3

Page 16: Topic 7 Review

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100 POINTS

ANSWERANSWER

The formula of a Rectangular Prism ->

V=lwh + The formula of a Pyramid with a square

base -> V= 1/3(lw)h

V= lwh + 1/3 (lw)h

Which formulas can be used to find the volume of this composite figure?

Page 17: Topic 7 Review

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250 POINTS

ANSWERANSWER

Two lines!

What cross section will you get when you intersect two cones like this?

Page 18: Topic 7 Review

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250 POINTS

ANSWERANSWER

An ellipse (oval)!

What cross section will you get when you intersect a cylinder with a plane that’s NOT parallel without touching its bases?

Page 19: Topic 7 Review

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250 POINTS

ANSWERANSWER

Find the volume of the hemisphere and add it to

the volume of the cylinder.

How can you find the volume of the composite solid:

Page 20: Topic 7 Review

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250 POINTS

ANSWERANSWER

V=πr2h

What formulas would you use to find the volume of this ice

cream sandwich?

Page 21: Topic 7 Review

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500 POINTS

ANSWERANSWER

17.37 in3

John makes giant oreos at home. Each oreo is 0.5 inches thick and has a 4 inch diameter. They are filled with vanilla cream that is 0.5 inch high and reaches to 0.25 inches away from the edge of the cookie. What is the volume of each oreo?

Page 22: Topic 7 Review

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500 POINTS

ANSWERANSWER

Find the volume of the cube and subtract the volume of the cylinder

inside.

How can you find the volume of this composite figure?

Page 23: Topic 7 Review

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1000 POINTS

ANSWERANSWERThe height must be doubled

ANSWERANSWER

Sharon wants to double the volume of a can of soda. What does she need to double?

The height, the diameter, both?

6 in

6 in

Page 24: Topic 7 Review

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1000 POINTS

ANSWERANSWER

48π

The volume of a sphere is 6π cubic inches. If the radius of

the sphere is doubled, what is the volume, in cubic inches,

of the new sphere?

Page 25: Topic 7 Review

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1000 POINTS

ANSWERANSWER

r = 3.00 cm

The volume of the given cylinder is 300 cubic units. What is its radius, to nearest

whole unit?

Page 26: Topic 7 Review

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1000 POINTS

ANSWERANSWER

Find the volume of the half cylinder and

subtract it from the rectangular prism.

How can you find the volumeOf this composite figure?

Page 27: Topic 7 Review

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1000 POINTS

ANSWERANSWER

B

Which solid can be used to derive

the volume of this pyramid? 8 in

8 in10 in

6 in

10 in

8 in

A

B

Page 28: Topic 7 Review

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1000 POINTS

ANSWERANSWERradius= 2.39 in

Diameter= 2.39 x 2 = 4.78 in

A woman put 36 cubic inches of sand inside an cone shaped bucket and flattened the top. The cone is 6 inches tall. What is the approximate diameter of the cone, in inches?

Page 29: Topic 7 Review

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1000 POINTS

ANSWERANSWERVolume of a sphere and volume of a cylinder.

What formulas must be used to find the volume of this composite figure?