Geometry Mid Term

1.

5 points

My original imagine had length of 25, 15, and 75. The dilated imagine has lengths of 5, 3, and 15. What is the scale factor?

5

5/1

1/5

15

2.

5 points

The bottom length of a triangle is 16 units long. How long would the mid segment be?

8

4

2

16

3.

5 points

Angle A and Angle C are vertical angles. Angle C is 48 degrees. Angle A is?

132

48

42

3

4.

5 points

Interior angles of triangles add up to?
Interior angles of parallelograms add up to?

180 for both

90; 180

360; 540

180; 360

5.

5 points

If 2 triangles are congruent because of SAS. What does that mean?

Sides-Angle Symmetry

Sum-Angle-Similar Property

Side-Angle-Side Property

Straight-Angle-Symmetry Property

6.

5 points

Basic rigid motions do what to lengths and angle measures?

Preserves length; Doubles angle measures

Preserves length; Preserves angle measures

Doubles length; Preserves angle measures

Cuts length in half; cuts angle measures in half

7.

5 points

One angle of a triangle measures 90 degrees. What is the measure of the other two angles?

One 40 and one 50

One 30 and the other 60

Both 30

Both 45 degrees

8.

5 points

Corresponding Angles are?

Equal in Measure

Equal 90 degrees

Equal 180 degrees

Equal 45 degrees

9.

5 points

Angle A is 110 degrees. If the angle is bisected, what would the measure of the angles be?

55 degrees

110 degrees

75 degrees

90 degrees

10.

5 points

Angle A=78 degrees. Angle C is an alternate interior angle. What is the measure of Angle C?

12 degrees

102 degrees

78 degrees

282 degrees

11.

5 points

Opposite side of a parallelogram are?
Opposite angles of a parallelogram are?

sides are congruent; angles are different

Congruent for both

Sides are different lengths; angles are congruent

Both are different

12.

5 points

5 angles meet at a point. Angle A measures 47 degrees. Angle C is a right angle. Angle D is a vertical angle to Angle A. What is the measure of Angle B and Angle E?

B=135;E=45

B=45;E=135

B=133; E=43

B=43; E=133

13.

5 points

Three angles share a vertex. One angle measures 133 degrees. One measures 147 degrees. What is the measure of the last angle?

80

90

0

45

14.

5 points

A rectangle has a length of 68 and a width of 32. With a scale factor of 1/4, what would the new length and width be?

272, 128

17, 8

34, 16

51, 24

15.

5 points

Two triangles are congruent. Both triangles have sides of length 4, 6, and 12. What property shows these are congruent?

Side-Side-Side Property

Scale Factor of 1 Property

Everything Equal Property

16.

5 points

A straight angle measure to what?

90

0

360

180

17.

5 points

The radius of a circle is 8 units long. With a scale factor of 3, what is the length of the diameter?

48 units

24 units

8 units

56 units long

18.

5 points

What must be equal for ASA to show triangles congruent?

Any 2 angles and the side in between the angles must be equal on both triangles.

2 consecutive angles and the side in between the angles must be equal on both triangles.

2 consecutive angles and any side must be equal on both triangles.

Any 2 angles and any side must be equal on both triangles.

19.

5 points

Angles A, B, C, and D all meet at a point. Angles A and C are vertical angles. Angle A measures 68 degrees. Angle C is bisected with one of the bisected angles equaling 34 and the other equaling 4x+2. Find the value of X and angle B

x=10, y=112

x=8, y=112

x=8, y=110

x=10, y=110

20.

5 points

A triangle has lengths that are 4, 8, and 17 units long. The scale factor is 2. What are my new lengths?

4, 8, 17

2, 4, 8.5

8, 16, 34

8, 16, 36