Ohio EOC Geometry

What is the measure of one interior angle of a regular 45-gon?

• 180

• 360

• 172

• 93

What is the sum of the exterior angles of a 20-gon?

• 180

• 360

• 3240

• 162

Identify the  missing statement or reason

• Reflexive Property

• Definition of Midpoint

• Given

• Vertical Angles Theorem

Find the value of X

• 20

• 30

• 21

• 19

Solve for the value of x

• 15

• 30

• 10

• 25

Name the postulate, if possible, that makes the triangles congruent.

• SAS

• ASA

• AAS

• Not Possible

Identify the transformation from ABC to A'B'C'.

• 90^o clockwise rotation

• 90^o counter clockwise rotation

• Reflection across the y-axis

• Reflection across the x-axis

If you were to rotate ABCD 180°  about the origin, what would the coordinate of A' be?

• (-5, 5)

• (-3, -5)

• (-5, 3)

• (-3, 3)

Which transformation will result in being similar to the original figure but has a larger area?

• Dilation with scale factor of 2

• Dilation with scale factor of 1

• Dilation with scale factor of .5

• Translation 

A triangle is dilated by a scale factor of ⅓ to produce a new triangle. Which of the following best describes the relationship between the perimeter of the original triangle compared to the perimeter of the new triangle?

• The perimeter of the new triangle is ⅓ that of the original triangle

• The perimeter of the new triangle is 3 times that of the original triangle.

• The perimeter of the new triangle is 1/9 that of the original triangle.

• The perimeter of the new triangle is 9 times that of the original triangle