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04-02-2021
Mathematics

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What is the value of the missing angle?
A.80°
B.90°
C.170°
D.260°

help help help please What is the value of the missing angle A80 B90 C170 D260 class=

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Zebutic Zebutic

04-02-2021

Answer:

A

Step-by-step explanation:

Pentagons have a total of 540°, so taking this into account, you need to add all of the angles together and then subtract 540 to get the missing angle.

90 + 90 + 140 + 140 = 460

540 - 460 = 80°

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