X=7.
if angle D=9x, E=90 degrees and F=(3x+6)
9x+3x+6+90=180
12x+96=180
12x=84
x=7
What is x
100
25 degrees
What is Two complementary angles measure x and 65°.
How many degrees are there in x ?
100
side side side
What is SSS
100
f a = b then b = a
What is symmetric property
100
A bisector is something that cuts an object into two equal parts
What is a bisector
200
if angle D=9x, E=90 degrees and F=(3x=6)
if x=7
9(7)=63
the measure of angle D is 63 degrees
What is the measure of angle D
200
45 degrees
What is Two vertical angles measure x and 45°.
How many degrees are there in x ?
200
side angle side
What is SAS
200
If a = b and b = c, then a = c.
What is transitive property
200
Image result for define corresponding angles postulate
The Corresponding Angles Postulate states that, when two parallel lines are cut by a transversal, the resulting corresponding angles are congruent
What is the corresponding angle postualte
300
if angle D=9x, E=90 degrees and F=(3x+6)
if x=7
(3(7)+6)
measure of angle F is 27 degrees
What is the measure of angle F
300
105 degrees
What is Two supplementary angles measure x and 75°.
How many degrees are there in x ?
300
angle side angle
What is ASA
300
The linear pair postulate states that two angles that form a linear pair are supplementary
What is linear pair postulate
300
Same side interior angles are two angles that are on the same side of the transversal and on the interior of (between) the two lines
What is same-side interior
400
Point C is the centroid of the triangle. The longer side is 12 and the other side is X.
12=2x
12/2=2/2
X=6
What is x?
400
40 degrees
What is Two vertical angles measure 2x and 80°.
How many degrees are there in x ?
400
angle angle side
What is AAS
400
The linear pair postulate states that two angles that form a linear pair are supplementary.
What is linear pair postulate
400
Exterior Angles are created where a transversal crosses two (usually parallel) lines. Each pair of these angles are outside the parallel lines, and on the same side of the transversal.
What is same-side exterior
500
Line MP and LK are medians of triangle LRM. MN = 7x-4 and NP = 2x+1.
first you have to find X.
7x-4=3(2x+1)
7x-4=4x+2
3x-4=2
3x=6
x=2
7(2)-4+2(2)+1
14-4+4+1
10+5
measure of MP=15
What is MP
500
x = 20
What is Two complementary angles measure (2x+10) and (x+20) degrees. What is the value of x ?
500
states that for every real number x , x = x .
What is the reflexive property
500
The Third Angles Theorem states that if two angles of one triangle are congruent to two angles of another triangle, then the third angles of the triangles are congruent also.
What is third angle postulate
500
Angle Sum Theorem. The Angle Sum Theorem gives an important result about triangles, which is used in many algebra and geometry problems.