Formulas
Parallelograms/Rectangles/Squares
Circles
Triangles
Trapezoids
100
What is the formula for the area of a rectangle?
A = lw
100
Find the area for a rectangle when the base is 6cm and height is 7cm.
42 cm2
100
Find the diameter of a circle when the radius is 1.9 m.
3.8 m
100
Find the area of a triangle when the base is 5 mi and height is 12 mi.
30 mi2
100
Find the area of a trapezoid when base1 is 7 m, base2 is 9 m, and the height is 3 m.
24 m2
200
What is the formula for the area of a parallelogram?
A = bh
200
Find the area for a parallelogram when the base is 12 in and height is 9 in.
108 in2
200
Calculate the area of a circle when r = 4.7 mm. Use 3.14 for pi. Round to the nearest tenth.
69.4 mm2
200
Find the area of a triangle when the base is 7 m and height is 12 m.
42 m2
200
Find the area of a trapezoid when the base1 is 4 in, base2 is 6 in, and the height is 7 in.
35 in2
300
What the formula for the area of a triangle?
A = 1/2 bh
300
Find the area for a square when the sides are 16.3 ft. Round your answer to the nearest tenth.
265.7 ft2
300
Find the area of a circle when d = 2.2 m. Use 3.14 for pi. Round your answer to the nearest tenth.
3.8 m2
300
Find the area of a triangle when the base is 3 cm and height is 7 cm.
10.5 cm2
300
Find the height of a trapezoid when the area is 55 cm2, base1 is 6 cm, and base2 is 4 cm.
11 cm
400
What is the formula for the area of a circle?
A = (pi) r2
400
Find the base of a parallelogram when the area is 35 in2 and the length is 7 in.
5 in
400
Find the radius of a circle when the area is 161.8 cm2. Use 3.14 for pi. Round to the nearest tenth.
7.2 cm
400
Find the height of a triangle when the area is 72 ft2 and base is 12 ft.
12 ft
400
Find the one base of a trapezoid if we know the second base is 3.5 ft, the area is 49.4 ft2, and the height is 10.4 ft.
6 ft
500
What is the formula for the area of a trapezoid?
A = 1/2 h (b1 + b2)
500
Find the side of a square when the area is 72 km2. Round your answer to the nearest tenth.
8.5 km
500
Find the area of a semi-circle when the radius is 8 cm. Use 3.14 for pi. Round your answer to the nearest tenth.
100.5 cm2
500
Find the base of a triangle if the area is 24 yd2 and the height is 4 yd.
12 yd
500
Find the area of the shape.
225.3 cm2