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VladimirAG [237]
3 years ago
10

OOI ANSWER THIS RQ~~~~~

Mathematics
1 answer:
pychu [463]3 years ago
4 0

Answer:

m\angle B=65\°

m\angle C=140\°

Step-by-step explanation:

From the figure ABCD given:

BC=CD

AB=AD

m\angle A=90\°

m\angle D=65\°

The given figure ABCD is a kite as it fulfills the properties of a kite.

The properties of kite are:

1) It is 4 sided

2) It has 2 pairs of equal sides adjacent to each other.

3) The angles formed between the 2 pairs of sides is equal.

By the 3rd property of kite stated above:

m\angle B=m\angle D

Given m\angle D=65\°

∴ m\angle B=65\°

Sum of interior angle of a quadrilateral = 360°

So, we have m\angle A+m\angle B+m\angle C+m\angle D=360\°

Plugging in values of the angles known.

90\°+65\°+m\angle C+65\°=360\°

m\angle C+220\°=360\°

Using subtraction property of equality, we have

m\angle C=360\°-220\°

∴ m\angle C=140\°

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