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3 years ago

Prove: Quadrilateral ABCD is a parallelogram.

Mathematics

1 answer:

Brilliant_brown [7]3 years ago

6 0

Answer:

Step 3.

m∠ AEB = m∠ CED .........By Vertical Angles Theorem.

Step-by-step explanation:

Vertical Angles Theorem:

Vertical angle theorem states that vertical angles, angles that are opposite each other and formed by two intersecting lines,are congruent.

If two lines intersect each other we have two pair of vertical opposite angles. As shown in the figure.

Here,

∠ 1 and ∠ 2 are vertical opposite angles and also they are equal.

∠ 3 and ∠ 4 are also vertical opposite angles and also they are equal.

For,

step 3. m∠ AEB = m∠ CED

Therefore, the reason for step 3 of this proof is Vertical Angles Theorem.

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2 years ago

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Answer:

Step-by-step explanation:

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3 years ago

An observer for a radar station is located at the origin of a coordinate system. Find the bearing of an airplane located at the

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Answer:

Step-by-step explanation:

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3 years ago

PLEASE HELP ME What is the measure of angle y?<br> 130°<br> 50°<br> 90°<br> 40°

QveST [7]

Answer:

m<y=50

Step-by-step explanation:

The total interior angles of a triangle is 180 degrees. This is a right triangle, the right angle measures 90 degrees. The given angle is 40 degrees.

Add 90 and 40.

90+40=130

Subtract 130 from 180.

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m<y=50

Check:

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3 years ago