Double Reflection Over Intersecting

Using the ACUTE ANGLE, is the direction of the rotation positive or negative?

• POSITIVE

• NEGATIVE

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

True or False?

• True

• False

Tags

CCSS.HSN-VM.B.5A

CCSS.HSN-VM.B.5B

If you wanted to rotate a shape by 140° by double reflecting it over two intersecting lines, the angle between the two intersecting lines would need to be ________°. *Enter the number only--no symbols or units.

Tags

CCSS.8.G.A.3

What is the angle of rotation after a double reflection over intersecting lines if the angle of the acute angle of the intersecting lines is 50°?

• 50

• 100

• 25

• 130

Tags

CCSS.8.G.A.3

The angle of rotation of the double reflection over ___________ lines is exactly 2 times the angle between the intersecting lines.

• Intersecting

• parallel

• perpendicular

• transformation

Tags

CCSS.8.G.A.3

Two lines intersect to form an acute angle of 26°. If you reflect a triangle over both lines, what would be the measure of rotation?

• 52°

• 13°

• 180°

• 90°

Tags

CCSS.8.G.A.3

The double reflection picture would move triangle DEF _____ units (to the) ______.

• 6; left

• 12; left

• 6; right

• 12; right

Tags

CCSS.8.G.A.3

The pictured double reflection would result in a translation _____ units _____.

• 2; up

• 2; down

• 4; up

• 4; down

Tags

CCSS.8.G.A.3

A double reflection over intersecting lines results in a _____________________.

• translation

• reflection

• rotation

Tags

CCSS.8.G.A.3

A reflection over line y = 5 followed by a reflection over line y = -1 would results in a:

• translation down a total of 12 units

• translation up a total of 12 units

• translation up a total of 6 units

• translation down a total of 6 units

• translation to the left a total of 6 units

Tags

CCSS.8.G.A.3