Trigonometry, Similarity, Area of Sector Quiz

What type of transformation occurred when a triangle moves from A(2, 3), B(4, 3), C(3, 5) to A'(2, -3), B'(4, -3), D'(3, -5)?

• Reflection over the x-axis

• Translation

• Rotation

• Dilation

Which of the following are rigid motions? Check all that apply.

• Dilation

• Rotation

• Translation

• Reflection

Are Triangle A with side lengths 6, 8, and 10 and Triangle B with side lengths 3, 4, and 5 similar?

• Yes, their scale factor is 1/2

• No, they are not similar

• Yes, their scale factor is 2

• No, they have different angles

What does it mean when the sides of figures are proportional?

• The sides are equal in length.

• The sides have the same ratio.

• The sides are the same

• The sides are parallel.

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

What is true about the angles of similar figures?

• The angles are congruent.

• The angles are different.

• The angles are supplementary.

• The angles are complementary.

If a circle has a radius of 6 and a central angle of 90°, what is the area of the sector?

• 9π

• 3π

• 18π

• 27π

If two triangles have the same shape but different sizes, they are:

• Congruent

• Similar

• Identical

• Different

What is the term for a transformation that involves turning a figure around a point?

• Translation

• Rotation

• Dilation

• Reflection

What is the term for a transformation that involves sliding a figure in any direction?

• Translation

• Rotation

• Dilation

• Reflection

What is the term for the longest side of a right triangle?

• Base

• Height

• Hypotenuse

• Leg