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andrezito [222]
3 years ago
13

If polygon ABCD rotates 70° counterclockwise about point E to give polygon A'B'C'D', which relationship must be true? A. A′E = A

E B. BB′ = DD′ C. m∠ABCm∠A'B'C'

Mathematics
2 answers:
Leokris [45]3 years ago
6 0
So the question ask if the polygon ABCD rotates 70degree counterclockwise about point E to give polygon A'B'C'D' so which of the following among your choices is true about the the said polygon and the answer would be letter A. A'E = AE. I hope you are satisfied with my question 
Vikki [24]3 years ago
5 0

Answer with explanation:

It is given that , when polygon ABCD is rotated by 70°in counterclockwise direction about point E to give polygon A'B'C'D'

When a Quadrilateral is rotated

1. The shape and size of two Quadrilateral do not change.

2. The Interior angle of two quadrilateral will also not change.

the Only relation ship which will be true is

Option C →m∠ABC=m∠A'B'C'

When we rotate a geometrical shape by a certain angle,it's interior angle do not change.

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Answer:

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Step-by-step explanation:

The sum of the angles of a triangle is 180 degrees.

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First step is to combine the like  terms on the left hand side:

40+4x=180

Second step is to subtract 40 on both sides.

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Third step is to divide both sides by 4:

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The angle that is given is the one that is 40 degrees.

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35,40,105

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