3 years ago

I don't understand please help

Mathematics

1 answer:

kirill [66]3 years ago

5 0

Answer:2x+30 =90

If the angle is 90° altogether

60=A 30=30

Step-by-step explanation:

2x+30 =90

-30 -30

2x=60

÷2. ÷2

x=30

2*30=60

60+30=90

60=A B=30

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