Classifying triangles
Angles and parallel lines
Angles and triangles
Angles at a point
Equations
100
A triangle with all sides of different length
Scalene
100
Corresponding angles form what letter?
F
100
Angles in a triangle add up to?
180 degrees
100
Complementary angle add to
90 degrees
100
Find x if
x+9=15
x=6
200
An isosceles triangle has....
2 congruent (equal) sides and 2 congruent angles
200
Are co-interior angles congruent or supplementary?
Supplementary
200
Can a triangle have 2 right angles?
No
200
2 angles are supplementary. If one of the angles is 65 degrees, what is the size of the other angle?
115 degrees
200
Find x if
3x=27
x=9
300
A triangle with a 90 degree angle
Right triangle
300
A transversal crosses a pair of parallel lines. What are the names of the 2 congruent angle properties?
Corresponding and alternate angles
300
A triangle has angles of 32 and 84 degrees. What is the size of the third angle?
64 degrees
300
Vertically opposite angles are c__________
congruent
300
Solve for x:
2x-10=14
x=12
400
A triangle with two 60 degree angles
Equilateral
400
2 angles are co-interior. What size are the angles if one is twice as large as the other?
60,120
400
An isosceles triangle has an obtuse angle of 120 degrees. What are the sizes of the other angles?
Both 30 degrees
400
Two straight lines cross and a 130 degree angle is made between them. What are the sizes of the other 3 angles made?
130, 50, 50
400
Solve for x:
x/2 - 4 = 15
x=38
500
A Rhombus is cut into two triangles. What types of triangles can be formed?
Isosceles or Equilateral
500
Find the value of x in this diagram
87 degrees
500
A square is cut into 2 triangles by drawing a diagonal line from 2 opposite corners. What are the sizes of the angles in the triangles?
One 90 degrees and two 45 degrees.
500
Four angles around a point include a right angle, a 100 degree angle and another obtuse angle. What range of sizes is possible for the last angle?
Less than 80 degrees
500
Solve for x:
6(2x-3)=54
x=6