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Dafna11 [192]
3 years ago
15

If m angle B=m angle D=41, find m angle C so that quadrilateral ABCD is a parallelogram

Mathematics
2 answers:
Charra [1.4K]3 years ago
8 0

ANSWER

139°

EXPLANATION

One of the interior angle properties of a parallelogram is that adjacent interior angles are supplementary.

This means that, the adjacent interior angles add up to 180°.

If

m \angle \: B = m \angle \: D = 41

Then

m \angle \: C +  m \angle \: D = 180 \degree

OR

m \angle \: B +  m \angle \:C= 180 \degree

\implies41 \degree +  m \angle \:C= 180 \degree

\implies m\angle \:C= 180 \degree - 41 \degree  = 139 \degree

lyudmila [28]3 years ago
3 0

Answer:

193

Step-by-step explanation:

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