Formulas
What is the formula for the area of a circle
A = (pi)(radius squared)
The circular fountain in front of the courthouse has a radius of 9.4 feet. What is the circumference of the fountain? Round to the nearest tenth.
59.1 feet
The radius of a circle is 3 meters. What is the area of the circle?
A = 28.26 meters squared
Find the area of a triangle with base 6 and height 10.
A = 30
What is the area of a rectangle with: base = 7 m height = 9 m
A = 63m squared
What the formula for area of a triangle
Area = 1/2 bh
A dog is leashed to a point in the center of a large yard, so the area the dog is able to explore is circular. The leash is 20 feet long. What is the area of the region the dog is able to explore? Round to the nearest tenth.
3,947.8 feet squared
The radius of a circle is 6 millimeters. What is the area of the circle?
A = 113.04 mm squared
Find the area of a triangle with Base= 7 Height=12
A = 42
What is the area of a rectangle with base of 4 centimeters and height of 6 centimeters?
A = 24 centimeters squared
What is the formula for area of a rectangle
A = lw
A flowerpot has a circular base with a diameter of 27 centimeters. Find the circumference of the base of the flowerpot. Round to the nearest tenth.
84.8 cm
The diameter of a circle is 20 inches. What is the area of the circle?
A = 314 inches squared
What is the area of a triangle with base of 7 and height of 4?
A = 14
What is the area of a rectangle with base 11 centimeters and height 6 centimeters?
A = 66 centimeters squared
What is the formula for circumference of a circle?
C=2 pi r
C=pi d
Find the area of a window with a diameter of 36 in. Round to the nearest tenth.
1,017.4 inches squared
The diameter of a circle is 8 inches. What is the area of the circle?
A = 50.24 inches squared
What is the area of a triangle with base 10 and height 8?
A = 40
What is the area of a rectangle with the base 12 centimeters and the height 4 centimeters?
A= 48 centimeters squared
What is the formula for area of a square
A = bh
Joni has a circular garden with a diameter of 14 1/2 feet. If she uses 2 teaspoons of fertilizer for every 25 square feet of garden, how much fertilizer will Joni need for her entire garden? Round to the nearest tenth.
13.2 teaspoons
The diameter of a circle is 100 inches. What is the area?
A = 7,850 inches squared
What is the area of a triangle with Base= 12 Height=24
A = 144
What is the area of a rectangle with the base 21 inches and the height 12 inches?
A = 252 inches squared