Download 9-3 Conditional Statement WS (due Tuesday)

Conditionals worksheet
Name ____________________________ Date ____________ Class period _______
Fill in the blanks with words or symbols to make the following statements true.
1. If today is Wednesday, then tomorrow is ____________.
2. If 3x – 5 = 16, then x = _____.
3. If a figure has three sides, then the figure is a _________.
4. If two lines are parallel, then the slopes of the lines are _______.
Determine whether the following is true or false. If false, tell why (counterexample)
5. If a figure is a square, then it has four equal sides. ____________________
6. If 5x – 1 = 3x + 11, then x = 3. _____________________
7. If you are driving a car, then you are 16 years old._____________________
Given the following conditional, write the converse and determine its validity.
8. If a triangle has 2 sides with equal lengths, then the triangle is isosceles.
9. If 4x – 1 = 3x + 8, then x = 9.
10. If x = 4, then 2x + 5 = 13.
For the following statement, write the converse, inverse and contrapositive and
determine its validity.
11. If an angle has the measure of 95º, then it is an obtuse angle.
Converse:
Inverse:
Contrapositive:
12. If a point is in the second quadrant, then is has a positive y-coordinate.
Converse:
Inverse:
Contrapositive:
13. Write the following as a bi-conditional statement.
Two lines that intersect to form right angles are defined to be perpendicular.