# Pre Algebra Exam

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Good luck!" I have copied and pasted my instructors instructions below i will attach the link,Thanks

Accounting_Teacher
School: Cornell University

Pre-Algebra Quarter 4 Exam
Score: ______ / ______
Name: ______________________________
Student Number: ______________________

1. Elsie is making a quilt using quilt blocks like the one in the diagram.

a. How many lines of symmetry are there?
- There are 4 lines of symmetry

b. Does the quilt square have rotational symmetry? If so, what is the angle of rotation?
- Yes. The angle of rotation is 900, 1800, and 2700
2. Lisa and Bart spin this spinner 60 times. The results are below:

Pre-Algebra Quarter 4 Exam

a) What is the experimental probability of a spin of orange?

21÷60= 0.35 x 100 =35%
Therefore, the probability of a spin of orange is 35%

b) Which color had an experimental probability that matched its theoretical probability?
The answer is blue because each color has the theoretical probability of 25
percent., in which, 15÷60=0.25 x 100 = 25%

3. Use the diagram below to answer the following questions.

a. Name three points.
The three points are:
- D, G and, C.

Pre-Algebra Quarter 4 Exam

b. Name four different line segments.
The four different line segments are as follows:

FD
DG
DC
FG

⃡ .
c. Write two other names for 𝐹𝐺
FD, GF
d. Name two different rays.
FG, and DF

4. Charlie is at a small airfield watching for the approach of a small plane with engine trouble.
He sees the plane at an angle of elevation of 32. At the same time, the pilot radios Charlie
and reports the plane’s altitude is 1,700 feet. Charlie’s eyes are 5.2 feet from the ground.
Find the ground distance ...

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Anonymous
Wow this is really good.... didn't expect it. Sweet!!!!

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