Lesson 7-3
Proving Triangles Similar
Proving Triangles Similar
Lesson 3-3
Rotations
Rotations
Lesson 2-3 Parallel lines and triangle angle sums
Lesson 6-3
Properties of parallelograms
Properties of parallelograms
Lesson 5-3
Medians and Altitudes
Medians and Altitudes
100
What are the three ways to prove triangles similar?
1. Angle-Angle Similarity (AA~)
2. Side-Angle-Side Similarity (SAS~)
3. Side-Side-Side Similarity (SSS~)
100
What is this transformation?
(x, y) ----> (-x, y)
Reflect over the y-axis
100
What is (6x-7)+(6x+4)=117
x=10
100
What shape is a parallelogram?
A parallelogram is a flat shape with opposite sides parallel and equal in length.
100
Describe a median of a triangle.
A segment with endpoints at the vertex and midpoint of the opposite side.
200
When is it Side-Side-Side Similarity Theorem?
If the corresponding sides of two triangles are proportional, then the triangles are similar.
200
A triangle has vertices at R(1,1), S(-2,-4), and T (-3,-3). The triangle is transformed according to the rule RO, 270 °. What are the coordinates of S’
(-4,2)
200
12x+8+55+8x-3=180
x=6
200
What are 5 properties of a parallelogram?
Both pairs of opposite sides are parallel.
Both pairs of opposite sides are congruent.
Both pairs of opposite angles are congruent.
Consecutive angles are supplementary.
Diagonals bisect each other.
200
Describe an altitude of a triangle.
A segment that connects the vertex and the opposite side at 90 degrees.
300
Complete the similarity statement.
ΔABC ~ ____
ΔZYX
300
Is this image A'B'C' is a rotation of ABC?
False.
300
Name the angle relationship.
Alternate Interior
300
The opposite sides of a parallelogram are congruent. true or false?
true.
300
Which of the following segments represents a median?
BZ
400
The triangles are similar by...
AA similarity
400
If you were to rotate ABCD 270° counterclockwise about the origin, what would the coordinate of C' be?
(-2, 3)
400
Find C.
∠C=116°
400
What are parallelograms? triangles, quadrilaterals, hexagons, pentagons?
Quadrilaterals
400
Which of the following segments represents an altitude?
BX
500
Solve for x.
6
500
Find the image of O(-2,1) after two reflections, first across the line y=-5, and then across the line x=1.
(4,-9)
500
If angle 1 is 135 degrees, how many degrees is angle 3?
135 degrees
500
The opposite sides and opposite angles of a parallelogram are supplementary, perpendicular, not congruent, congruent?
congruent.
500
Given AM is the median, which of the following statements is false?
MB=CB