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pychu [463]
2 years ago
7

Can someone please help me

Mathematics
2 answers:
Alex787 [66]2 years ago
4 0
A.30
b.60
c.90
must be 180
lorasvet [3.4K]2 years ago
3 0

Answer:

angle A=30°

angle B=60°

angle C=90°

Step-by-step explanation:

given : A=30°,C=90° the mark states it is 90°

find :C=?

A+B+C=180°

30°+90°+x°=180°

=120°+x°=180°

=120°-120°+x°=180°-120°

=x°=60°

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