Final Review Unit 2

Given the statement;

"If it snows then the school will be closed"

Which is the inverse?

• If the school is open, then it didn't snow.

• If the school is closed, then it snowed.

• If it doesn't snow, then the school will be open.

• Let it Snow!

Given the conditional statement;

"If it is Wednesday, then Jane doesn't have baseball practice."

What is the hypothesis of this statement.

• It is Wednesday

• Jane doesn't have baseball practice

• If it is Wednesday

• Then Jane doesn't have baseball practice

Given the conditional statement;

"If I am hungry, then I eat."

Which of the following is the inverse?

• If I eat, then I am hungry.

• If I don't eat then I am not hungry

• If I am not hungry, then I don't eat.

• If I am not hungry, then I eat.

What is the contrapositive to this?

• If an angle is not greater than 90, then it is not obtuse

• If an angle is not obtuse then it is not greater than 90.

• If an angle is 90, then it is right

• If an angle is not greater than 90 then it must be acute

What is the contrapositive to this?

• If the food is not cooked, then it is not in the oven.

• If the food is not in the oven, then it is not cooked.

• If the food is cooked, then its in the oven.

• If food is not in the oven, then its cooked.

Statement : If 13 is an even number, then 13 is not divisible by 2

Choose the correct converse for the given statement.

• If 3 is an odd number, then 13 is divisible by 2

• If 13 in not divisible by 2, then 13 is an odd number

• If 13 is not divisible by 2, then 13 is an even number

• If 13 is divisible by 2, then 13 is an odd number

Statement : If an isosceles triangle has 3 sides, then the isosceles triangle has 3 axes of symmetry

Choose the correct contrapositive for the given statement.

• If an isosceles triangle has 3 axes of symmetry, then the isosceles triangle has 3 sides.

• If an isosceles triangle has 3 sides, then the isosceles triangle did not has 3 axes of symmetry.

• If an isosceles triangle did not has 3 sides, then the isosceles triangle did not has 3 axes of symmetry.

• If an isosceles triangle did not has 3 axes of symmetry, then the isosceles triangle did not has 3 sides.

Statement : If 9 is a prime number, then 9 has two factors only

Choose the correct inverse for the given statement.

• If 9 is a prime number, then 9 did not has two factors only

• If 9 is not a prime number, then 9 has two factors only

• If 9 has two factors only, then 9 is a prime number

• If 9 is not a prime number, then 9 did not has two factors only

Which of the following provide a counterexample to the claim:

"If two angles are supplementary, then they are not congruent."

Which is a counterexample to the following statement?

If you add two numbers, then the sum is odd.

• 2+5=7

• 3+2=5

• 1+8=9

• 2+4=6