Question 300738: I need major help on how to answer these questions and what they are. :( this is an ungraded study guide but counted as an incomplete if not finished. I don't understand how to do these so I would love help:( Here is the info...
* The slash / represents a fraction bar and division. For example, one half = 1/2.
* The notation sqrt( ) is used to denote the square root of a number.
To answer some of the following questions you will need to refer to the figures below:
Figure 1: The three horizontal lines are parallel.
Figure 3: The two horizontal lines are parallel.
Figure 7: JM and JP are chords of the circle. JK is a diameter.
Figure 8: GH and JK are chords of the circle.
Use Figure 3 below for the following proof:
Given: Lines a and b are cut by the transversal f, and m ang 1 + m ang 3 = 180°.
Prove: lines a and b are parallel.
1. m ang 1 + m ang 3 = 180o : Given
2. m ang 3 + m ang 5 = 180° : Definition of straight angle
3. m ang 1 + m ang 3 = m ang 3 + m ang 5 : __________
4. m ang 1 = m ang 5 : __________
5. Lines a and b are parallel: __________
Here are the figures that go with the questions:
http://i44.tinypic.com/s153m1.png
And here are the questions:
22.) A square has diagonals of length 8 cm. Find the area. ___ square cm
32
16 sqrt(2)
12
3 sqrt(2)
23.) the measure of the complement of the angle with measure 45 degrees.
315 degrees
45 degrees
55 degrees
135 degrees
24.) Use Figure 1. The exterior angles of Angle 3 are _______.
Angles 1 and 2
Angles 5, 6, and 7
Angles 2 and 4
Angles 1, 2, and 4
25.) In Figure 8, if GI = 3, IH = 8, JK = 10, what is JI (if it is longer than IK)?
8
12
6
4
26.) All opposite sides of a trapezoid are parallel.
True
False
Neither
Both
27.) What is the volume of a right cone with radius 3 and height 4? ___ (pi) cubic units
16
24
12
27
28.) For Figure 4, find AC.
26 2/3
9.5999999999999996447286321199499070644378662109375
10
15
29.) The converse of the statement: "If you are baking brownies, then the kitchen smells good", is "If the kitchen smells good, then you are baking brownies."
True
False
Neither
Both
30.) The radius of a Circle O is 4, if radii OA and OB form 90° angle, AB = ?
4 sqrt(2)
4
16 sqrt(2)
8
Answer by Fombitz(32388)   (Show Source):
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