Angles
Lines
Triangles
More Angles
Solve the Problem
100
When two lines intersect, or come together.
What is an angle
100
A straight one-dimensional figure having no thickness and extending infinitely in both directions.
What is a line.
100
When sides, segments or angles have the exact same length or measurement.
What is congruent or equal.
100
Most commonly found in square and rectangle objects.
What is a right angle.
100
Angle 1 and 3.
What are vertical angles.
200
Less than 90 degrees.
What is an acute angle.
200
A line with a single endpoint (or point of origin) that extends infinitely in one direction.
What is a ray.
200
All angles in a triangle sum to.
What is 180 degrees.
200
Most commonly found in triangles.
What are acute angles.
200
Angle 3 and 4.
What are supplementary angles.
300
90 degree angle
What is a right angle.
300
The common endpoint of two or more rays or line segments.
What is a vertex.
300
A triangle has 1 angle that measures 30 and a second angle that measures x + 10. Find the third angle x.
What is x = 70 degrees.
180 = 30 + (x + 10) + x
180 = 40 + 2x
140 = 2x
70 = x
300
Most commonly found in shapes like pentagons.
What is an obtuse angle.
300
Solve for Y
What is y = 30.
y + 23 = 63
y = 63-23
y = 40
400
An angle that is larger than 90 degrees.
What is an obtuse angle.
400
Angle created by a line (measures 180 degrees).
What is a straight angle.
400
A triangle has two sides that are each 12 inches long. The third side must be less than...
What is 24, because it is the sum of the other two sides.
400
Two angles that form a 90 degree angle.
What is a complementary angles.
400
x is supplementary to 50 degrees.
Solve for x
What is x = 130
x + 50 = 180
x = 180 - 50
x = 130
500
Opposite (back to back) angles formed by the intersection of two lines.
What is a vertical angle.
500
When two rays come together at a common endpoint.
What is an angle.
500
If a triangle has one side that is 6 inches and a second side which is 5 inches, the third side cannot be more than.
What is 11 inches.
500
Two angles that share a common vertex and side.
What are adjacent angles.
500
Solve for y given the angle whole angle is 90 degrees.
What is y = 50
40 + y = 90
y = 90 - 40
y = 50