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pls help me i will mark as brain list if correct

Pls Help Me I Will Mark As Brain List If Correct class=
Pls Help Me I Will Mark As Brain List If Correct class=
Pls Help Me I Will Mark As Brain List If Correct class=
Pls Help Me I Will Mark As Brain List If Correct class=
Pls Help Me I Will Mark As Brain List If Correct class=

Sagot :

Answer:

Step-by-step explanation:

it has 5 edges

(b) let the third side be X

X+40+50=180 (angles on a straight line)

x=180-40-50

X=180-90

X= 90 degreedegrees