Lesson 1
10, 12, 18, 28, 42, _______, _______, _______.
60, 82, 108.
Which of the following models suggests a plane?
a) bowling ball
b) garage door
c) water hose
d) fence post
b) garage door
The intersection of two lines is a _____.
Point.
Name the hypothesis and the conclusion of the statement below.
If you eat carrots every day, then you will not need eyeglasses.
Hypothesis: You eat carrots everyday.
Conclusion: You will not need eyeglasses.
31.4, 29.9, 28.4, 26.9, _______, _______, _______.
25.4, 23.9, 22.4.
Sketch the following:
Lines AB and BD intersect at point B.
See board.
The intersection of two planes is a _____.
Line.
Write the converse of the conditional statement below.
If an animal is a spider, then it has eight legs.
If an animal has eight legs, then it is a spider.
-5000, 1000, -200, _______, _______, _______.
40, -8, 1.6.
Sketch the following:
Rays LM and LN have one point in common. L, M, and N are collinear.
See board.
What is the intersection of lines AB and BC?
B
Is the converse of the statement below true or false?
If you know the length and width of a rectangle, then you know its area.
False.
State a counterexample to the conjecture below.
If a number is divisible by 6 and 2, then it is divisible by 12.
18
Draw three collinear points.
What is the intersection of planes ABCD and CDEF?
CD
Which conditional statement is not equivalent to the other three?
a) All rectangles are squares.
b) If a figure is a square, then it is a rectangle.
c) All squares are rectangles.
d) A figure is a rectangle if it is a square.
a) All rectangles are squares.
A line contains points A, B, C, and D. Name the line.
Draw points A and B. How many lines can you make?
One.
Can more than 2 planes intersect at one line? Yes or no.
Yes
Write the following statement in if-then form.
Three noncollinear points determine a unique plane.
If three points are noncollinear then they determine a unique plane.