Vocabulary
Is that which has no part
Point
If equals be added to the equals, the wholes are equal.
Which common notion is it?
2
To produce a finite straight line contineously.
2
Define Isosceles Triangle.
Triangle with two sides equal.
What is proposition 4 is about?
SAS
Angle less than 90 degrees
Acute angle
Things which are equals to the same thing are also equals to one another.
1
To describe a circle with any center and distance.
3
What is the relation of base angles of isoceless triangle?
They are equal.
Base angles of isosceles triangle are equal, which proposition is it?
5
When two lines cross each other ______ angle formed.
Vertical
If equals be subtracted to the equals, the difference are equal.
Which common notion is it?
3
To draw straight line from any point to point
1
In Triangle ABC, Angle A= 70, Angle B= 70, AC= 7 cm, AB= 12 cm, how much is BC?
7 cm
Proposition 20 (Triangle inequality theorem) says...................
Two sides taken together is greater than remaining side.
Any two Angles added together is always less than ______ degrees. ( I.17)
Two right
Whole is greater than the part
5
All right angles are equals to one another.
4
In a Triangle XYZ, XY=XZ, if angle Z= 72 degrees what is the measure of angle X.
36
What types of proof is called indirect proof?
Assuming opposite to, "To prove" and concluding that assumption is wrong.
The figure contained by diameter and circumference of a circle.
Semi circle.
Things which coincide are equals to each other.
4
State postulate 5
If a straight line falling on two straight line, make the interior angle on same side less than two right angles. they will eventually meet each other.
In Triangle ABC, AB=AC and Angle A=30, Find the value of Angle B.
75
IF, AB= CD and CD= AD, Then AB=AD, why?
CN1