Geometry Midterm Review

Front

Figures that have the same _____ and size are congruent triangles.

Back

shape

Front

Are these vertical angles?

Back

yes

Front

Determine if the triangles are similar. Justify: Yes, by SSS. Yes, by SAS. Scale Factor is 1:2. Yes, by SAS. Scale Factor is 3:1. No, not similar.

Back

Yes, by SAS. Scale Factor is 3:1.

Front

What is the midpoint between (3, -1) and (7, -5)?

Back

(5, -3)

Front

What is the distance between the two points?

Back

4.5 units

Front

What is the definition of congruent triangles?

Back

Triangles that are identical in shape and size.

Front

What is the formula for finding the midpoint between two points (x1, y1) and (x2, y2)?

Back

Midpoint = ((x1 + x2)/2, (y1 + y2)/2)

Front

What is the distance formula between two points (x1, y1) and (x2, y2)?

Back

Distance = √((x2 - x1)² + (y2 - y1)²)

Front

What does SSS stand for in triangle similarity?

Back

Side-Side-Side; it means all three sides of one triangle are proportional to the three sides of another triangle.

Front

What does SAS stand for in triangle similarity?

Back

Side-Angle-Side; it means two sides of one triangle are proportional to two sides of another triangle and the included angle is equal.