Math, asked by ektaanand2268, 6 months ago

if the purple quadrilateral is a parallelogram what is 'a'?​

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Answers

Answered by Anonymous
2

Answer:

a=120-84=36°

Step-by-step explanation:

In ΔPQR

∠P+∠R=132

∠R=132-48=84°

or ∠BRC=84°

Now AB||CD

So ∠RBA= ∠BRC=84

Thus a=120-84=36°

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Answered by ChitranjanMahajan
0

Given,

∠Green = 120°

∠Yellow = 48°

∠Blue = 132°

To find,

∠a

Solution,

According to the question,

In ΔPQR,

∠P +∠R = 180° - ∠Yellow = 180° -48° = 132°

∠R = 132 - 48 = 84°

or ∠BRC = 84°

Now, AB || CD

So,

∠RBA = ∠BRC = 84°

⇒ ∠a = 120 - 84 = 36°

Hence, measure of ∠a is 36°.

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