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# Circles - Circumference (Grade 7)

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## Circles - Circumference

1.
A circular window in a skyscraper has an area of 1430 $ft^2$. Its circumference is 140 $ft$.
1. True
2. False
2.

What is the circumference of a circle, to the nearest foot, if the area of the circle is 16 $"ft"^2$?
1. 32 ft
2. 14 ft
3. 8 ft
4. 16 ft
3.
What is the circumference of of a circle if the area is 4?
1. $16$
2. $25.1$
3. $2.26$
4. $7.1$
4.
What is the circumference of a circle if the area is 32?
1. $20$
2. $3.19$
3. $6.38$
4. $10$
5.
What is the circumference of of a circle if the area is 40?
1. $22.4$
2. $7.1$
3. $3.6$
4. $12.7$
6.

What is circumference of this shape to the nearest unit, if the area is 53 units?
1. 8
2. 16
3. 26
4. 4
7.
What is the circumference of of a circle if the area is 73?
1. $65.2$
2. $9.6$
3. $30.3$
4. $4.8$
8.
What is the circumference of of a circle if the area is 6?
1. $8.7$
2. $1.4$
3. $17.4$
4. $2.8$
9.
What is the circumference of of a circle if the area is 204?
1. $80.9$
2. $50.6$
3. $8.05$
4. $200.4$
10.
If the area of a round flower garden is 30 feet, what is the circumference?
1. 9.5 feet
2. 3.1 feet
3. 6.18 feet
4. 19.4 feet
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