Show:
Area of
Parallelograms
Area of
Triangles
Area of
Trapezoids
Circumference
& Area of
Circles
Questions about all shapes
100
What is the area of a parallelogram with a height of 4 and a base of 7? A = b x h
Area = 28
100
A sailboat has a mainsail that is in the shape of a right triangle. What is the area if the base is 15 and the height is 20? A = bh divided by 2
Area = 150
100
What is the area of a trapezoid whose height = 3, base 1 = 2 and base 2 = 4 ? A = h (b1 + b2) divided by 2
Area = 9
100
What is the Area of a cirlce if its radius is 1 cm. A = pi x r squared
Area = 3.14 cm
100
If you were tyring to calculate the perimeter of a composite figure, why would you not include any of the inside numbers?
Perimeter = outside, NOT inside
200
What is the area of the parallelogram with a base of 10.5 and a height of 4.5? A = b x h
Area = 47.25
200
What is the area of a triangle wose base is 10.4 and height is 6.3? A = bh divided by 2
Area = 32.76
200
What is the area of a trapzoid whose height = 4, base 1 = 3, base 2 = 7? A = h(b1 + b2) divided by 2
Area = 20
200
What is the area of a circle whose diameter is 4 inches. Area = pi x r squared
Area = 12.56
200
If i wanted to find the area of a SEMI circle, what would i need to do the formula pi x r squared?
You would need to divide pi x r squared by 2.
300
The area of a paralellogram is 24 inches. If the base is 8 inches, what is the height? Hint: Working Backwards A = b x h
Height = 3
300
A triangle has an area of 32 feet. If the height is 8 feet, what is the base? Hint: Working Backwards A = bh divided by 2
Base = 8 feet
300
The area of a trapezoid is 12 inches. base 1 = 4 inches, base 2 = 4 inches, what is the height? A = h(b1 + b2) divided by 2
Height = 3 inches
300
The radius of a quarter is about 12mm. What would be the circumference of thye circle? C = pi x d
circumference = 75.36
300
Why is it so important for you to write out A = or C= when you are writing the formulas ?
If you were working backwards, you wouldnt have any place to plug in the area or the circumference to.
400
What base of a paralellogram if it has an area of 36 and a height of 4? Hint: Wokring Backwards A = b x h
Base = 9
400
A triangle has an area of 56 square centimeters. What is the base of the triangle if its height is 8 cm? Hint: Working Backwards A = bh divided by 2
Base = 14 cm
400
A trapezoid has an area of 40 cm. Base 1 = 2 inches, base 2 = 8 inches. What is the height? A = h(b1 + b2) divided by 2
Height = 8 inches
400
If the circumference of a circle = 25.12, what is the diameter? C = pi x d
diameter = 8
400
If you were trying to calculate the area of 2 full circles, what would you do to the pi x r squared formula to get the area for both circles?
Multiply the formula by 2 OR add the answer to itself twice
500
What is the base of a paralellogram if its area is 46.56 and the height is 4.8? Hint: Working Backwards A = b x h
Base= 9.7
500
What is the area of a triangle whose base is 8.5 and height is 7.6? A = bh divided by 2
Area = 32.3
500
What is the area of a trapezoid whose height = 5 inches, base 1 = 15 inches, and base 2 = 5 inches? A = h(b1 + b2) divided by 2
Area = 50 in.
500
If the diameter of a circle is 9, what is the radius?
Radius = 4.5
500
Before you try to answer every question on the final exam, what should you write down before you start the problem.
The FORMULA !!!!