Area of Triangles and Parallelograms
Parts of a Circle
Circumference and Pi
Composite Figures
Area of Circles
100
A = ½bh
What is the area formula for a triangle?
100
A line that crosses the circle through the middle, edge to edge.
What is the diameter?
100
The distance around the circle.
What is circumference?
100
Area equals pi times radius squared.
What is the area formula of circles?
100
The formula for the area of circles.
What is A=pi r squared?
200
A = bh
What is the area formula for a parallelogram?
200
A point that is the same distance from all sides of the circle.
What is the center?
200
The ratio of the circumference of a circle to the diameter.
What is pi?
200
A figure formed by two or more geometric shapes.
What is composite figures?
200
The area of a wall clock that has a radius of 6 inches. (Use 3.14 for pi)
What is approximately 113.04 square inches?
300
A = lw
What is the area formula for a rectangle?
300
A line from edge to edge of a circle.
What is a chord?
300
The radius of a bicycle tire is 25.4 cm. Find the circumference. (Use 3.14 for pi)
What is approximately 159.512 cm?
300
The area of a swimming pool that is a rectangle with semicircles on each end. The rectangle is 12 meters wide and 30 meters long. The diameter and width of the swimming pool are equal. (Hint: draw the picture first)
What is approximately 473.04 square meters?
300
The area of a circle with a diameter of 80 feet. (Use 3.14 for pi)
What is approximately 5024 square feet?
400
Find the unknown measurement of rectangle. A = 36 square inches l = 12 inches w = ? inches
What is 3 inches?
400
Half the diameter
What is a radius?
400
A fish bowl has a circular base with a radius of 14 inches. Find a rough estimate for the area of the base of the fish bowl.
What is 588 square inches?
400
The area of a flying disc that is packed tightly inside of a box with a square base for shipping. The area of the base of the box is 144 square inches. (Use 3.14 for pi)
What is approximately 113.04 square inches?
400
The estimation for pi you should use when a circle's radius is a multiple of 7.
What is 22/7?
500
Jacklyn has a triangle pendant with a base of 9 mm and a height of 5 mm. Find the area.
What is 22.5 square mm?
500
An angle with a vertex that is the center of a circle.
What is a central angle?
500
Samantha made a circular cake for her brother. The circumference of the cake is 50.24 inches. Find the radius of the cake.
What is approximately 8 inches?
500
The first thing you must do when calculating the area of composite figures.
What is make a "shape equation"?
500
The length of the radius when the area of the circle is 153.86 square inches. (Use 3.14 for pi)
What is 7 inches?
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