Geometry with Measure
Name: __________________ Date: _________ Pd:_____
Chapter 3 Mid-Chapter Review
For Exercises 1–5, suppose a || b and c || d. (1pt each)
1. If m6 = 50, then find m11.
2. If m2 = 70, then find m6.
3. If m1 = 130, then find m5.
4. If m7 = 110, then find m10.
5. If m4 = 45, then find m12.
6.) Name the exterior angle and its corresponding remoter interior angles. (3pts)
Solve for each marked angle: (1pt each angle)
7.)
8.)
m3 
m1 
m5 
9. The angle measures of ∆ABC are represented by x + 8, x – 3, and x – 38, what is the
measure of each angle? Show work. (6pts)
m4 
Open Response: (8pts)
A right triangle has acute angle measures in the ratio 2:3.
A. Draw a figure representing this triangles and label the angles.
B. Write and solve an equation to solve for the measures of the angles.
C. Find the measure of each angle.
D. What must be true of the two acute angles of every right triangle?
Use the figure for Exercises 1–10.
For Exercises 1–3, suppose a || b and c || d.
1. 2 and 10 are what kind of angles?
2. 3 and what angle are alternate interior angles?
3. 9 and 8 are what kind of angles?
4. Which angle could you show is congruent to 11 to prove a || b?
5. What relationship between 6 and 11 shows c || d?
Find the values of the variables.
11.
12.
13.
14.