Measures
Which of the following best describes a point in geometry?
A. A location in space with length and width
B. A location in space with no dimension
C. A straight path that extends infinitely
D. A flat surface that extends infinitely
(B) A location in space with no dimension
How many degrees makes up a triangle?
180 degrees
Adjacent angles must...
Share a vertex and a common side
if angle A and angle B measures 180 and angle A equals 105 degrees, then Angle B equals
75 degrees
An acute angle is an angle that is...
less than 90 degrees
What is the measure of each angle formed by two perpendicular lines?
90 degrees
A triangle has how many sides?
3 sides.
Using the segment addition postulate, if AB=5, BC=3, and point B is between A and C, then AC equals:
8 units long.
An obtuse angle must have over how many degrees?
90 degrees.
The definition of a ray in math is
a part of a line that has a fixed starting point but no endpoint.
Vertical angles are always
They are always congruent
A right triangle has 45 degrees as one of the legs the other leg equals?
45 degrees.
Three points are said to be collinear if
They all lie on the same line
Using the distance formula, what is the distance between points (0,0) and (3,4)?
5 units
Two rays that share the same endpoint form:
an Angle
In the coordinate plane, what is the perimeter of a rectangle with vertices at (0,0), (3,0), (3,4), and (0,4)
14 units
In the coordinate plane, points A(2,3), B(2,7), and C(5,3) form:
A right triangle
If points A, B, and C are coplanar, which statement must be true?
A. They form a right triangle
B. They lie on the same line
C. They all lie in the same plane
D. They form equal angles
(c.) They lie on the same line.
What is the midpoint of a line segment with endpoints at (2,4) and (6,8)?
(4,6)
Two angles are complementary if their measures sum to:
90 degrees
If two angles are supplementary, and one measures 115 degrees, the other measures:
65 degrees.
The area of a triangle in the coordinate plane with vertices at (0,0), (4,0), and (0,3) is:
6 square units
This formula is used for finding sides for right triangles.
The Pythagorean theorem
If two angles are complementary, and one is twice the other, the smaller angle measures:
30 degrees.
A bisector line is...
a line that divides a line segment or an angle into two equivalent parts.