Area and Circumference Word Problems

Jayson is putting in a new circular shaped fire pit in his backyard. The diameter of the fire pit is 4 feet. What is the area of the fire pit? (Use 3.14 for  $\pi$ ) 

• 12.56 sq ft

• 56.52 sq ft

• 25.12 sq ft

• 3.14 sq ft

Tags

CCSS.7.G.B.4

 The radius of this pizza is 9.5 in. What is the approximate area of the pizza rounded to the nearest tenth? (Use 3.14 for  $\pi$  )

• 81 in²

• 29.8 in2

• 59.7 in2

• 283.4 in2

Tags

CCSS.7.G.B.4

Jaylon skates at a circular rink that has a radius of 4 yards. If he skates around the outside of the rink about how far does he skate one time around? (use 3.14 for  $\pi$  )

• 50.24  yd

• 25.12 yd

• 38.92  yd

• 12.56 yd

Tags

CCSS.7.G.B.4

Caedyen has trained his puppy, Chase, to jump through a ring. According to Caedyen's measurements and calculations, the ring has a diameter of 3.5 feet. What is the ring's circumference rounded to the nearest whole number (use 3.14 for pi)?

• 10 ft

• 12 ft

• 11 ft

• 21 ft

Tags

CCSS.7.G.B.4

Which formula would you use to answer: Ethan is painting a large circle on one wall of his new apartment. The circle is 8 feet across. Approximately how many square feet of wall will the circle cover?

• $A\ =\ bh$

• $A\ =\ \pi r^2$

• $C\ =\ 2\pi r$

• $C\ =\ \pi d$

Tags

CCSS.7.G.B.4

If the word problem is asking you to find the space inside the circle, which formula should you use?

• r = d/2

• d = 2r

• C = πd

• A = πr²

Tags

CCSS.7.G.B.4

If the problem ask you to find the distance around a circle, which formula should you use?

• r = d/2
• d = 2r
• C = πd
• A = πr²

Tags

CCSS.7.G.B.4

Which formula would you use to answer: Lauren's bicycle tire has a diameter of 20 inches. How many inches is one full revolution of the wheel?

• $P\ =\ 2l\ +\ 2w$

• $A\ =\ \pi r^2$

• $A\ =\ \frac{1}{2}bh$

• $C\ =\ \pi d$

Tags

CCSS.7.G.B.4