Big Ideas Review Geometry

Which equation could be used to find the correct value of x?

• 8x - 17 + 5x - 3 = 180

• 8x - 7x = 5x - 3

• 8x - 17 + 5x - 3 = 71

• 8x - 17 + 5x - 3 = 90

Answer explanation

Remember:

Piece + Piece = Whole

Tags

G.CO.A.3

• 1

• 7

• 3

• 2

• 7.5

• 4.5

Answer explanation

The midpoint is a point, so we need a coordinate pair (x, y).

Add the x values, divide by 2.

Add the y values, divide by 2.

Mathematical Equivalence

ON

Answer explanation

Piece + Piece = Whole

Tags

G.CO.A.8

Match the the pairs of VERTICAL angles.

Answer explanation

Vertical angles have a common vertex, but do NOT share a side. They are opposite from each other and congruent.

Tags

G.CO.A.8

• Parallel

• Perpendicular

• Neither

Classify each figure as convex or concave.

Groups:

(a) Convex

,

(b) Concave

• 
• 
• 
• 

Answer explanation

Think: Does it have a side that is "caved" in?

QR is a midsegment of triangle WUV. What is the length of segment QR?

• 4

• 8

• 16

• 32

QR is a midsegment of triangle BCD. Solve for the value of x.

• 11

• 18

• 9

• -7

Name the parallel segment.

• WY

• YX

• WX

• PN

What is this point of concurrency?

• Circumcenter

• Orthocenter

• Centroid

• Incenter