Formula
Triangles
Rules
Angle Relationships
Random
100
What is the formula for perimeter
Sum of all the sides
100
Classify the triangle
Equilateral
100
If 2 angles form a straight line, they add to 180°, so they are: _________
Supplementary angle
100
Describe or draw a pair of vertical angles and explain their relationship.
Two lines intersecting, opposite angles. They are congruent.
100
What is a bisector?
line, ray, or plane that divides a geometric object into two equal parts
200
What is the formula for the area of a triangle?
1/2 base x height
200
35
200
When two parallel lines are cut by a transversal, angles in matching positions are: _________
Corresponding Angles
200
What is it called when two angles add up to 90 degrees?
Complementary
200
Name these two rays
Ray HG
Ray AB
300
What is the equation of line in slope-intercept form?
y=mx+b
300
Solve for x.
x=13
300
If 3 sides in one triangle match 3 sides in another triangle, the rule we can use to prove congruence is: ___
SSS
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
What is the point-slope formula?
y2-y1=m(x2-x1)
400
Solve for y and round to the nearest tenth.
y=8.9
400
Angles opposite each other when two lines cross are equal, so they are: ___
Vertical Angles
400
What is the m<MLB and the m<PLB?
m<MLB=120 and m<PLB=60
400
Which are the two that cannot make a pair of triangle congruent?
SSS, AAA, SAS, ASA, SSA, AAS
AAA, and SSA
500
What is the formula for finding the midpoint?
M = (x2 - y2)
2
500
What are the measure of angle R
130
500
What is the point of concurrency for the Median
Centroid
500
Solve for y and x.
y = 40 degrees
x=67
500
Giant Eagle recently changed the size of their soup can, but kept the price the same. The original can had a diameter of 10 cm, and a height of 9 cm. The smaller can has a radius of 3.5 cm and a height of 7 cm. How much more soup does the first can hold?
About 437 cm squared more