Area of 2D Shapes
Circumference
Area of Circle
Composite Figures
Challenge (optional)
100
The area of a rectangle with a length of 2 inches and a width of 4 inches. Include the correct unit.
A = lw or bh
What is 8 in2?
100
Find the circumference of the following circle? 3.14 for pi
C = pid or 2pir
What is 25.12 inches?
100
Find the area of the following Circle. Round to the nearest tenth. Use 3.14 for pi
A = pir^2
What is 12.6 yd squared?
100
Find the Area of the composite figure. Use the formula chart for the correct formulas.
What is 200.5 yd2?
100
Find the area of the shaded space. Use the formula chart for the correct formulas.
What is 72 square units?
200
The area of a triangle with a base of 6 in and a height of 8 inches. Include the correct unit.
A = 1/2(bh)
What is 24 in2?
200
The circumference of a circle with a radius of 10 cm? 3.14 for pi
C = pid or 2pir
What is 62.8 cm?
200
Find the area of the following Circle. Round to the nearest tenth.
Use 3.14 for pi
A = pir^2
What is 3846.5 mm2?
200
Find the Area of the composite figure. Use the formula chart for the correct formulas.
What is 81 m2?
200
Find the area of the following shape. Round to the nearest tenth if necessary. Use the formula chart for the correct formulas.
What is 960,000 ft2?
300
The area of a trapezoid with bases of 4 and 8 meters, and a height of 16 meters.
A = 1/2 (b_1 +b_2)h
What is 96 in2?
300
Find the circumference of the following circle? 3.14 for pi
C = pid or 2pir
The circumference is 197.82 cm
300
Find the area of the semi-circle. Round to the nearest tenth.
Use 3.14 for pi
A = pir^2
What is 34.7 yd2?
300
Find the area of the composite figure. Use the formula chart for the correct formulas.
What is 23.9 cm2?
300
Find the Area of the shaded area. Use the formula chart for the correct formulas.
What is 62.8 m2?
400
The TOTAL area of three (3) parallelograms with side lengths of 16 inches and a height of 10 inches. Include the correct unit.
A = bh
What is 480 in2?
400
Find the circumference of a helicopter pad with a diameter of 15 yards? 3.14 for pi
C = pid or 2pir
The circumference is 47.1 yards
400
What is the area of the drumhead on the drum shown below? Round to the nearest tenth.
Use 3.14 for pi
A = pir^2
What is 153.9 in2?
400
Find the Area of the composite figure. Use the formula chart for the correct formulas.
What is 232 m2?
400
Ubehebe Crater in Death Valley has a diameter of 4 miles. If Latisha walks around its rim at a rate of 2 miles per hour, about how long (minutes) will it take her to walk all the way around the crater? Find your answer to the nearest tenth. Use 3.14 for π. Use the formula chart for the correct formulas.
What is about 376.8 minutes?
500
The side lengths of a square whose area is 225 cm squared.
A = s2
What is 15 cm?
500
The largest tree in the world is the General Sherman sequoia in Sequoia National Park, California. It is 275 feet high, has a diameter of 36.5 feet, and has an estimated weight of 2,150 tons. Find the sequoia’s circumference to the nearest tenth of a foot. Use 3.14 for π.
C = pid or 2pir
What is 114.6 feet?
500
Vidur needs to buy mulch for the garden with the dimensions shown in the figure. For how much area does Vidur need to buy mulch? Round to the nearest tenth.
Use 3.14 for pi
A = pir^2
What is 47.5 yds2 of mulch?
500
Find the Area of the composite figure. Use the formula chart for the correct formulas.
What is 1972 cm2?
500
Harry's Pizzeria is having a sale on medium and large pizzas. Medium pizzas are 10 inches in diameter and cost $7.99. Large pizzas are 14 inches in diameter and cost $14.99. Which size pizza is the best deal? Explain your answer with mathematical proof.
Hint: Find the cost per square inch.
The 14" pizza is the better deal by 1 cent per square inch.
The 10" pizza is 11 cents per square inch, the 14" pizza is 10 cents per square inch.