Circles - Exact and Approx.

What was the exact circumference?

• $100\pi\ m^2$

• 314 m

• $20\pi$ m
  

• 62.8 m

What is the approximate circumference?

• 10 m

• 31.4 m

• $20\pi$ m

• 62.8 m

What is the exact area?

• $20\pi$ m

• 62.8 m

• $100\pi\ m^2$

• $314\ m^2$

What is the approximate area?

• $20\pi$ m

• 62.8 m

• $100\pi\ m^2$

• 314  $m^2$  

What is the exact circumference?

• $8\pi$ km

• 25.12 km

• $16\pi\ km^2$

• 50.24 km

What is the approximate circumference?

• $8\pi$ km

• 25.12 km

• $16\pi\ km^2$

• 50.24 km

What is the exact area?

• $8\pi$ km

• 25.12 km

• $16\pi\ km^2$

• 50.24 km

What is the approximate area?

• $8\pi$ km

• 25.12 km

• $16\pi\ km^2$

• 50.24 $km^2$  

What is the area?

• 48 ft

• $576\pi$ $ft^2$
  

• 47.98 ft

• 1808.64 $ft^2$

What is the area?

• 26 yd

• $169\pi$ $yd^2$

• 81.64 yd

• 530.66 $yd^2$