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3 years ago

Find all missing Angles A, B, and D in the figure.

Mathematics

1 answer:

Evgen [1.6K]3 years ago

4 0

Answer:

angle A=68°

angle B=68°

angle D= 111°

Step-by-step explanation:

angle D = angle C

angle D = 111°

interior angle of a quadrilateral=360°

angles A and B are equal . represent them by a°

a°+a°+111°+111°=360°

2a°+222°=360°

2a°=360°-222°

2a°=138°

2a°/2=138°/2

a°=68°

therefore angle A=68° and angle B =68°

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