Area of Trapezoids
What is the formula for finding the area of a Trapezoid?
Area = 1/2 (h)(base1 + base2)
Radius = d/2
Diameter = 2r
What is the formula(s) for finding Circumference?
C =(pi)(d)
C = (2)(pi)(r)
What is the formula for finding area of a circle?
C = (pi)(r2)
What are the formula(s) that we have learned about Semi-Circles?
C = (pi)(d) / 2
A = (pi)(r2) / 2
Height = 6ft Base 1 = 9ft Base 2 = 5ft
Area = 42 ft2
Find the diameter: r = 7m
diameter = 14m
Find the circumference if a circle with a radius of 7in.
C = 44 in
Find the area of a circle with a radius of 9mm
Area = 254.34mm2
Find the perimeter of a semicircle with a radius of 15 in.
77.1 in
Height = 5m Base 1 = 8m Base 2 = 4mm
Area = 30m2
Find the radius: d = 20ft
radius = 10ft
Find the circumference of a circle with a diameter of 10 ft
Find the area of a circle with the radius of 18 mi
Area = 1017.36 mi2
Find the area of the semicircle with the diameter of 8m.
A = 25.12 m2
Height = 4 Base 1 = 7 Base 2 = 5
Area = 24 units2
The diameter of a circle is 16 cm. Find the radius.
8 cm
What is the circumference of a circle the the radius of 24.5 cm
C = 153.86 cm
Find the area of a circle with a diameter of 12 inches.
Area = 113.04 in2
Find the perimeter of a semicircle with the radius of 20cm.
Perimeter = 102.8 cm
Height = ? Base 1 = 9in Base 2 = 11in Area = 60in2
Height = 6in
The radius of is 9 yards. Find the diameter.
18 yards
The circumference of a circle starts at 31.4 in then it becomes 10.5 inches. What is the diameter of the circle after is decreases?
7 inches
Find the area of the circle with a diameter of 28 cm
Area = 615.44 cm2
Find the area of the semicircle with a diameter of 24ft.
Area = 226.08 ft2