Mental Math
250 + 325 = ?
575
What does 'SSS' stand for?
Side Side Side
True
2(10 + x) = 100
x = 40
How many sides does a triangle have?
3
45 + 32 = ?
77
Two (or more) angles whose sum is 180 degrees
a. Supplementary angles
b. Complementary angles
c. Descriptive angles
Supplementary angles
Supplementary angles add up to 190 degrees
False. They add up to 180 degrees.
2(n + 5) = -2
n = -6
How many degrees are in a triangle?
a. 90
b. 180
c. 360
180 degrees
127 + 154 = ?
281
The point that divides the segment into 2 congruent segments
a. Divider
b. Midpoint
c. Angle
Midpoint
Parallel lines form a 90 degree angle.
False.
-12(x + 5) = 144
x = 17
True or False?
True
1,225 + 370 = ?
1,595
A point, ray, line, line segment, or plane that intersects the segment at its midpoint.
a. segment bisector
b. slope
c. intercept
Segment bisector
The reflexive property tells you that a line is congruent to itself.
True.
2x + 3= 5x - 24
x = 9
How many degrees are in a right angle?
a. 90
b. 180
c. 360
90 degrees
1,575 + 220 = ?
1,795
Has 2 dimensions, represented by a shape that looks like a floor or a wall, but extends without end.
a. line
b. plane
c. point
Plane
The midpoint formula uses 2 points to solve.
True.
4y - 3 = 2y + 15
x = 9
Name the measurement of 1 angle in an equilateral triangle.
a. 60
b. 5
c. 10
60 degrees