Angle m has a measure of 47°.

what is the measure of angle pnl?

43°
47°
86°
94°

Answer

Find out the  measure of ∠ PNL .

To proof

As given

∠ M = 47°

In  ΔLMN

Now by using the property if two sides of a triangles are equal than their opposite angles are also equal .

 As given MN = LN

∠ M =∠ L = 47°

and ∠ MPN = 90 °

(As shown in the diagram)

∠ MPN +  ∠ NPL = 180°  (Linear pair)

∠ NPL = 180° - 90°

∠ NPL = 90°

Now by using the angle sum property of a triangles

in Δ NPL

∠NPL +∠PNL + ∠NLP = 180°

90 + 47 + ∠PNL = 180

137+ ∠PNL = 180

∠PNL = 180 - 137

∠PNL = 43 °

therefor the option (A) is correct .

Hence proved

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step-by-step explanation: