Solving for Circles

• 20 units

• 31.4 units

• 15.7 units

• 25 units

Tags

TEKS.MATH.7.9B

• 154 square units

• 44 square units

• 77 square units

• 100 square units

Tags

TEKS.MATH.7.9B

If a circle has a circumference of 62.8 units, what is its diameter?

• 10 units

• 20 units

• 15 units

• 25 units

Tags

TEKS.MATH.7.9B

Which formula represents the circumference of a circle using its radius?

Tags

TEKS.MATH.7.8C

What is the approximate area of a circle with a diameter of 14 units?

• 154 square units

• 196 square units

• 78.5 square units

• 100 square units

Tags

TEKS.MATH.7.9B

Using a model, how can you determine the formula for the circumference of a circle?

• By using a square

• By using a rectangle

• By using a string to measure around the circle

• By using a triangle

Tags

TEKS.MATH.7.8C

The Jones family wants to enclose their circular garden with a fence. To the nearest foot, what is the minimum length of fencing they need to buy? (a)  

• 56.25 ft
• 246 ft
• 365 ft
• 393 ft

Tags

CCSS.7.G.B.4

The radius of a circle is 7 meters. Calculate the diameter.

• 3.5 meters

• 14 meters

• 21 meters

• 7 meters

Tags

CCSS.7.G.B.4

If the diameter of a circle is 10 cm, what is its radius?

• 5 cm

• 20 cm

• 10 cm

• 2.5 cm

Tags

CCSS.7.G.B.4

What is the area of this circle?

• 82.13 m²
• 78.50 m²
• 314.16 m²
• 170.12 m²

Tags

CCSS.7.G.B.4