Calculate the unknown marked angles in each figure:-
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1
Step-by-step explanation:
80+20+y=180. (angle sum property of a triangle)
100+y=180
y=180-100
y=80°
Answered by
1
Answer:
80
Step-by-step explanation:
Sun of the angles in a triangle are 180.
i.e. 80+20+y=180
100+y=180
y=180-100
y=80
Therefore unknown marked angle y is 80°
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