Topic 8- 7th Grade Review

Definitions

100

The distance around a circle

Circumference

200

A Model based on a ratio of the dimensions for the model and the actual object it represents

scale drawing

300

The distance across the circle through the center

diameter

400

The distance from the center of a circle to the edge

radius 

500

A shape with two parallel lines and is made up of two triangles and a rectangle 

trapezoid

Area

100

Area of a parallelogram with base of 4m and height of 5m

20m²

200

Area of a rhombus with base of 8 and height of 5.9

47.2 units²

300

Area of a circle with radius of 10

314 units²

400

Area of a trapezoid with a bottom base of 5, top base of 7, and height of 15

90 units²

500

Area of a circle with dimeter of 12.2

116.8394 units²

Circles

100

Circumference of a circle with a diameter of 25

78.5

200

Circumference of a circle with radius of 2.5

15.7

300

Area of a circle with a diameter of 25

490.625

400

What is the radius of a circle with a circumference of 164.54? Round to the nearest tenth

26.2

500

What is the diameter of a circle with an area of 78.5

10

Cylinders

100

Volume of a cylinder with the radius of 2 and height of 15

188.4

200

Volume of a cylinder with diameter of 12 and height of 24

2,712.96

300

Volume of a cylinder with diameter of 12.2 and height of 36; Round to the nearest tenth

4,206.2

400

Surface area of a cylinder with a radius of 10 and height of 25

2198

500

Surface area of a cylinder with a radius of 12 and height of 28

3014.4

Spiral ReviewYou cannot use a calculator

100

232 x 52

12,064

200

3.2 x 6.5

20.8

300

5/6 - 2/3

1/6

400

1 2/3 * 2 5/6

85/18 or 4 13/18

500

4 4/8 * 2 4/6

12