Angles
Circles
Triangles
Vocabulary
Theorems
100
An angle equal to 90 degrees.
What is a right angle?
100
All the angles in a circle add up to this number.
What is 360 (degrees)?
100
All the angles in a triangle add up to this number.
What is 180 (degrees)?
100
2 lines that are the same distance apart at every point and never cross are known as these types of lines.
What are parallel lines?
100
a2 + b2 = c2.
What is the Pythagorean theorem?
200
An angle smaller than 90 degrees.
What is an acute angle?
200
22This is the formula for the area of a circle.
What is
A = (pi)(r2)?
area = pi r squared
200
In a right triangle, this is the name of the largest side.
What is the hypotenuse?
200
This is a line with a single endpoint (or point of origin) that extends infinitely in one direction.
What is a ray?
200
Assuming that lines AB and CD are parallel, if angle 1 is equal to 98 degrees, angle 7 is equal to this.
What is 82 degrees?
300
An angle larger than 90 degrees.
What is an obtuse angle?
300
This is the length of the radius of a circle where the circumference is equal to 24 feet.
(answer in terms of pi)
What is 12/pi feet?
c = 2pi * r
24 ft = 2pi * r
12 ft = pi * r
r = 12/pi feet
300
In all right triangles, the largest angle is always equal to this number of degrees.
What is 90 (degrees)?
300
This is an angle outside of a triangle.
What is an exterior angle?
300
This theorem of three letters states that 2 triangles with 3 of the same equal length sides are congruent.
What is the SSS theorem.
400
DAILY DOUBLE: 2 opposite angles that are formed by the intersection of 2 lines, rays, or line segments and are equal to each other are known as these angles.
What are vertical angles?
400
This is the formula for the area of a sector of a circle.
What is (Ø)(pi/360)(r^2), where Ø is in degrees?
400
This is the value of angle ABC, or the only unlabeled angle.
What is 55 degrees?
400
This is a line, segment, or ray that crosses through, or intersect, 2 parallel lines to form alternate angles.
What is a transversal?
400
This theorem can be applied to state that the triangles above are congruent.
What is the SAS theorem?
500
2 angles that add up 180 degrees are known as these angles.
What are supplementary angles?
500
DAILY DOUBLE:
Where r is radius and d is diameter, this value of x fulfills this equation.
2r = (xd/3)
What is 3?
2r = (xd/3)
6r = xd *(2r = d)
3d = xd
x = 3
500
This is the value of tan(b).
What is 4/3?
500
What is a chord?
500
In spite of having 2 of the same sides and 1 same angle, the above triangles do not appear congruent because of the uncertainty in this theorem.
What is the SSA theorem?