Angles
Triangles
Transfor-
mations
Triangle
Construction
Geometry
100
2 pairs of vertical angles are shown. Name the pairs.
Angles 1 and 3 Angles 2 and 4
100
The three angles inside a triangle always sum to _____ degrees.
180
100
True / False: Reflections, rotations, and translations result in a figure congruent to the original.
True
100
True / False: A triangle can be constructed with segments of 4, 8, and 12 units.
False, 8 + 4 is not longer than 12.
100
Differentiate between a ray and a line.
A line extends both directions forever, and a ray has an endpoint and only extends in one direction.
200
Find the m < BCD.
128 degrees
200
True / False: - Equilateral triangles have three congruent sides and three angles that measure 60 degrees each. - Isosceles triangles have two congruent sides and two congruent angles. - Scalene triangles have three sides of different lengths and three angles of different measures.
True
200
Reflection over the x-axis.
200
How many triangles can be constructed with the angle measures 15, 15, and 150 degrees? No triangle, one unique triangle, or more than one triangle? Explain your answer.
15 + 15 + 150 = 180, so that's good. Triangles of different sizes could be constructed with these angle measures, so more than one.
200
Adjacent angles are pairs of angles that share a _________ and one ________ but do not overlap.
vertex, side/ray
300
Name a pair of adjacent angles.
< and <
300
Solve for the missing angle measure.
87 degrees
300
Rotation 90 degrees counterclockwise about the point (1,-3)
300
How many triangles could be constructed with segments of 10, 12, and 20 units?
One unique triangle.
300
When two lines intersect at a 90 degree angle, they are called ________________ .
perpendicular
400
Find the measure of angle a.
85 degrees
400
Find the measure of angle c.
101 degrees
400
Translation two units up and 5 units left.
400
In triangle ABC, the length of side AB is 20 inches and the length of side BC is 26 inches. Which of the following could be the length of side AC? A. 39 B. 48 C. 5 D. 6
A. 39 inches
400
x = 9
500
75 degrees
500
Find the m < CBE
35 degrees
500
Describe the Transformation: A(5,0), B(3, -2), C(2,- 4) to A'(-5,0) B'(-3, -2), C'(-2,- 4)
Reflection over the y-axis.
500
How many triangles can be formed with the given characteristics: An isosceles triangle with a 30 degree angle formed with the two congruent sides. A. None B. One unique triangle C. More than one triangle
C. More than one.
500
Find the measure of each angle (They are all congruent).
120 degrees
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