Answer:
I believe its 57.
Step-by-step explanation:
180-66=57.
57+57+66=180
R is 18 and x is 12 is the answer of your
question
I'm not sure what it really means, but if it means the base
length of the wall on the left door is 1.5m (it is given
The top says that it is 7.0m
The door is 1.0m
7.0 - 1.5 - 1.0 = 4.5
The Length of the wall on right of door is 4.5m
hope this helps
Answer:
x=1
Step-by-step explanation:
Step 1: Subtract 3x from both sides.
x+4−3x=3x+2−3x
−2x+4=2
Step 2: Subtract 4 from both sides.
−2x+4−4=2−4
−2x=−2
Step 3: Divide both sides by -2.
-2x/-2 = -2/-2
Answer:
∠ACB≅∠CAD, Alternate Interior Angles Theorem
∠BAC≅∠DCA, Alternate Interior Angles Theorem
AC≅AC, Reflexive Property of Congruence
By A-S-A congruence, the △ABC≅△CDA.
Step-by-step explanation:
Given the figure:
We are given that:
Side BC || AD
Side AB || DC
Let us have a look at a few properties first.
Alternate Interior Angle Theorem: It states that when two parallel lines are cut by a line then the alternate angles which are on the interior side are equal to each other.
Reflexive Property of Congruence: It states that a side or angle is always congruent to itself.
Now, let us consider the triangles:
△ABC and △CDA.
Side BC || AD
Therefore,
<em>∠ACB≅∠CAD, Alternate Interior Angles Theorem</em>
Side AB || DC
Therefore,
<em>∠BAC≅∠DCA, Alternate Interior Angles Theorem</em>
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Also, Side AC is common.
AC≅AC, Reflexive Property of Congruence
Therefore, by <em>A-S-A congruence</em>, the △ABC≅△CDA.