Formulas
Triangles
Circles
Angle Relationships
Random
100
The distance formula
What is the square root of (x2- x1)2 + (y2 - y1)2
100
Three functions to solve for missing sides and/or angles of right triangles
sine, cosine, tangent
100
What does the (h, k) and r stand for in the circle equation?
(h,k) is the center
r is the radius
100
Describe or draw a pair of vertical angles and explain their relationship.
Two lines intersecting, opposite angles. They are congruent.
100
What does SOHCAHTOA stand for?
Sine, Opposite, Hypotenuse
Cosine, Adjacent, Hypotenuse
Tangent, Opposite, Adjacent
200
The slope formula
m= y2-y1/x2-x1
200
Solve for y and round to the nearest tenth.
y=8.9
200
The area of the square is 196. What is the circumference of the circle rounded to the nearest tenth?
C=44.0
200
What is it called when two angles are on a line and together, they add up to 180 degrees?
Linear Pair
OR
Supplementary
200
Name these two rays
Ray HG
Ray AB
300
Equation of circles in standard form
(x-h)2 + (y-k)2=r2
300
Triangles that have congruent angles and sides that are proportional.
similar triangles
300
A tangent line
A line that intersects a circle at one point on the circle and is perpendicular to the radius line.
300
What is the name of line l?
Transversal
300
What are the six ways a triangle can be classified (by its sides and angles?)
Scalene, Equilateral, Isosceles
Obtuse, Acute, Equiangular
400
The midpoint formula
midpoint=( x1 + x2/2 , y1+y2/2)
400
An equation in which two ratios are set equal to each other
proportion
400
What is the length of arc PQ?
arc PQ = 540
400
A right angle cut into 2 angles by a perpendicular bisector.
What are complementary angles
400
Which are the two that cannot make a pair of triangles congruent?
SSS, AAA, SAS, ASA, SSA, AAS
AAA, and SSA
500
What is the formula for Arc Length?
L = theta(radius)
500
Solve for side BY. Round to the nearest tenth.
BY = 7.1
500
What is the length of the arc PQ?
Arc PQ=1,620
500
Solve for y and x.
y = 40 degrees
x=67
500
A ladder placed against a wall such that it reaches the top of the wall with a height of 6 m and the ladder is inclined at an angle of elevation of 60°.If the ladder is 8 m long, find how far the ladder is from the foot of the wall. Round to the nearest tenth.
The ladder is about 3.5 m from the building.