Geometry End of Unit 1 Quiz

Which statement best describes deductive reasoning?

• Using limited evidence to form a conjecture

• Noticing patterns and then making a generalization

• Using common sense to prove claims

• Using facts and logical statements to reach a conclusion

What is a valid counterexample for the following statement? "If an animal is a panther, then it lives in the forest."

• It lives in a zoo.
• No counterexample, this is true.
• It lives in an aquarium.
• It is a monkey

Tags

CCSS.RI.8.1

CCSS.RI.8.8

CCSS.RL.11-12.1

CCSS.RL.8.1

CCSS.RL.9-10.1

Which is a valid conclusion from these statements?
If a quadrilateral is a rhombus, then it is a parallelogram.
If a quadrilateral is a parallelogram, then its opposite angles are congruent.

• Opposite angles of a quadrilateral are congruent
• Opposite angles of a rhombus are congruent
• Every quadrilateral is a rhombus
• Every parallelogram is a rhombus

Tags

CCSS.HSG.CO.C.11

300 students are in the cafeteria. Today is school spirit day and students receive one point for wearing something red and one point for wearing something blue. 135 students earned the “red” point and 175 students earned the “blue point”. If 15

students did not earn any points, then how many students earned both the “red” and the “blue” points?

• 30

• 25

• 15

• 32

• 28

Tags

CCSS.HSA.CED.A.3

Complete the conjecture.  Think of examples to help.
The product of any two odd numbers is _____________

• even
• odd
• zero
• positive

Tags

CCSS.3.OA.D.9

Write the if-then statement that follows from the pair of true statements. If the sun is shining, then it is a beautiful day.  If it is a beautiful day, then we will have a picnic.

• If the sun is shining, then it is a beautiful day.
• If it is a beautiful day, then the sun is shining.
• If the sun is shining, then we will go on a picnic.
• If we go on a picnic, then the sun is shining.

Tags

CCSS.L.2.1F

CCSS.L.8.1C

CCSS.L.8.3A

If it is the night of taekwondo practice, then it is the day before garbage day. When it is the day before garbage day, you clean your room. If it is Tuesday, then you will have taekwondo practice tonight.

What day of the week is garbage day?

• Monday

• Tuesday

• Wednesday

• Thursday

Five people meet for the first time. Each person shakes hands with each of the other 4 people exactly once. How many handshakes took place? Copy and use the diagram to help keep track of the number of handshakes.

• 15

• 20

• 8

• 10

• 27

• 22

• 25

• 28

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Look at this pattern:

3, 5, 7

Do you have enough information to prove that the rule is "add 2" every time? Why or why not?

• Yes, 3 + 2 = 5, and 5 + 2 = 7

• Yes, because we observed the "+2" more than once

• No, you cannot prove something based on examples alone

• No, we need at least five numbers in the pattern in order to prove the rule

Tags

CCSS.5.OA.B.3