Circumference of Circles
Area of Circles
Vocabulary
Angles
Sides
100
What is the radius of this circle?
What is 9in
100
What is the Radius of the circle below?
What is 5cm
100
What is the line from the center of the circle to the outer edge?
What is the Radius.
100
Identify the following image. 
What is a supplementary angle.
100
What do we call sides that have the same tic marks?
What is congruent.
200
What else can you use besides the radius to find the circumference?
What is the Diameter
200
If you are given the diameter of a circle, how can you find the area of the circle?
What is, take the diameter and divide it by two to get the radius. Then use
A=pir^2
200
What is the line that stretches from one edge of the circle to the other called?
What is the Diameter.
200
Identify the missing angle.
What is 41 degrees.
200
DOUBLE POINTS!!!!!!!!!!!!!!
Identify this triangle
What is an Isosceles Triangle
300
Find the Circumference of a circle with radius 5 using the formula below in terms of pi.
C=2pir
What is
10pi
300
DOUBLE POINTS!!!!!!!!!!!!!!
Find the Area of a circle with diameter 20ft in terms of pi.
What is
100pi ft^2
300
How can you find circumference of a circle.
What is
300
Identify the following missing angle
What is 28 degrees.
300
Identify the following triangle
What is an Equilateral Triangle.
400
Find the Circumference of a circle with radius 10ft using the formula below. Round to the nearest whole number.
C=pid
What is 32ft
400
Find the Area of a circle with radius 4m. Round to the nearest hundredth.
What is
50.24m^2
400
DOUBLE POINTS!!!!!!!!!!!!!!
What is a complimentary angle and how do you find it?
What is, two or more angles that add up to
90^o
400
How do i find complementary and supplementary angles?
What is..
Complimentary are found by create and equation that will equal 90 degrees and then solve the equation.
Supplementary are found by create and equation that will equal 180 degrees and then solve the equation.
400
Identify using both sides and angles
What is an Acute and Equilateral Triangle because all angles are less than 90degrees and all sides are congruent at 17
500
DOUBLE POINTS!!!!!!!!!!!!!!!
A cow is tied to a rope attached to a pole. When the rope is stretched straight across the grazing area, the total distance from one end of the reachable area to the other is 20 feet. What is the total distance the cow can walk around the edge of this area? Let π = 3.14. Round to the nearest tenth.
What is 62.8ft
500
A cow is tied to a pole with a rope that is long enough to stretch across a circular grazing area that measures 24 ft from one edge to the opposite edge. What is the maximum area the cow can graze? Let π = 3.14. Round your answer to the nearest whole number.
What is
452ft^2
500
What is a supplementary angle and how do you find.
What is, two or more angles that add up to
180^o
500
DOUBLE POINTS!!!!!!!!!!!!!!
Identify the type of triangles using sides and angles.
What is..
Left: Scalene and obtuse: No sides are congruent and you can see once angle is greater than 90 degrees.
Middle: Isosceles and acute: The two sides have two tic marks which means congruent and all angles are less than 90 degrees.
Right: Right and scalene: There is a square indicating 90 degrees in one angle and none of the sides are congruent.
500
TRIPLE POINTS!!!!!!!!!!!!!!
Identify using sides and angles and also find the missing angle
What is a Right Scalene Triangle because he missing angle 47 degrees and there is a 90 degree marker so no sides are congruent.