Vocabulary Review
The space inside a figure
Area
What is the Circumference formula using radius?
C = 2 x pi x radius
What is the formula to find a circle's area?
A = pi x radius x radius
Simplify the expression: -4x - 3y + 3 - 8 -x + 8y
-5x + 5y -5
What is the area of a square?
A = side x side
The length of a figure's outside
Perimeter
What is the Circumference formula using diameter?
C = pi x diameter
Find the Area of a circle with radius of 4 cm. Write your answer as a decimal and with appropriate units.
50.24 cm2
Solve and show your steps with inverse operations:
5x - 2.5 = 6
x = 1.7
What is the area of a rectangle?
A = length x width
Exponent
Find the Circumference of a circle with diameter of 4.5 cm. Write your answer as a decimal and with appropriate units.
14.13 cm
Find the Area of a circle with diameter of 15 inches. Write your answer to the nearest tenth and with appropriate units.
176.6 inches2
Solve and show your work with inverse operations:
4x - 6 = 7x + 18
x = -8
What is the area of a triangle?
A = (base x height)/2
This value changes depending on the situation
Variable
Find the circumference of a circle with radius of 3 m. Round your answer to the nearest tenth and write your answer with appropriate units.
18.8 m
Find the Area of a semi-circle with diameter of 3 inches. Write your answer rounded to the nearest tenth and with appropriate units.
3.5 inches2
Distribute:
5a (5a - 8)
25a2 - 40a
What is the area of a parallelogram?
A = base x height
The distance from zero
Absolute value
Find the radius when the circumference of a circle is 21.98 inches.
3.5 inches
Find the Area of 3/4 of a circle with diameter of 15 cm. Write your answer rounded to the nearest tenth and with appropriate units.
132.5 cm2
Factor:
18x2 - 9x
9x (2x - 1)
What is the area of a trapezoid?
A = height x (base1 + base2)/2