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Vocabulary
Formula of Figures
Parallel & Perpendicular Lines
Triangles
Misc.
100
Two angles are __________ if they have the same measure.
Congruent
100
Find the area of a triangle with base 6cm and height 7cm. (Indicate correct unit measure.)
21cm²
100
Find an equation of a line passing through (2,4) and has a slope of 3.
y=3x-2
100
In a triangle, the measures of two of the angles are 78° and 56°. Find the measure of the remaining angle.
46°
100
The intersection of all perpendicular bisectors in a triangle is called the _______.
circumcenter
200
An angle is form by two _______ and a vertex.
rays
200
Find the area of a circle with radius 8 inches. (Indicate correct unit measure.)
64pi in² or 200.96 in²
200
Which of the following line is parallel to 5x+y=3?

a) y=5x+1362.25
b) y=-5x-421.55
c) y=(1/5)x+2435671
d) y=(-1/5)x+0.00005
a) y=5x+1362.25
200
The vertex angle of an isosceles triangle is 78°, and the measure of one of the base angles is (x+2)°. Find the value of x.
x=100
200
In a triangle, the length of the midsegment is 5x-6 and the length of the side of the triangle parallel to the midsegment is 2x+4. Find the length of the midsegment.
4
300
Two adjacent angles in which the sum of their angle measures is 180 degrees.
Linear Pair
300
Find the radius of a circle if the area is 81pi cm². (Indicate correct unit measure.)
9cm
300
If line m is parallel to line n and the measures of two consecutive interior angles are (3x+6)° and (2x+4)°. Find the measures of both angles.
108° and 72°
300
Find the angle measure of an exterior angle of an equilateral triangle.
120°
300
In triangle ABC, angle A measures 45° and angle B measures 58°. Which side is the longest?
Side AB
400
Two angles are ________ if their sides form a pair of opposite rays.
Vertical Angles
400
Find the base of a triangle with area 48cm² and height 7cm. (Indicate correct unit measure.)
96/7 cm or 13.71 cm
400
Find the equation of a line passing through (2,5) and parallel to 6x+y=3.
y=-6x+17
400
For triangles ABC and DEF, AB is congruent to DE, BC is congruent to EF, and angle B is congruent to angle E. Could the two triangles be proved congruent? If so, by what?
They are congruent by SAS.
400
Find the area of a circle with circumference 10pi cm.
25pi cm²
500
Two lines that do not intersect and are not parallel are called _________.
Skew Lines
500
Find the perimeter of a right triangle with legs 4cm and 3cm. (Indicate correct unit measure.)
12cm
500
Find an equation of a line passing through (2,5) and perpendicular to 2x+y=135.285
y=1/2x+4
500
The cities of Los Angeles, San Diego, and Riverside form a triangle. The distance between Los Angeles and San Diego is 90 miles, and the distance between Los Angeles and Riverside is 45 miles. What is the range of possible distance between San Diego and Riverside?
San Diego and Riverside must be between 45 miles and 135 miles.
500
If segment BD is a perpendicular bisector of segment AC (with D being the midpoint of AC). Find the length of AC if BC is 13cm and BD is 12cm.
10cm