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I need help! Please answer below on card C

I need help! Please answer below on card C-example-1
User Eliran
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2 Answers

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There’s a right angle=90
Angle is given=30
Add them both together you get 120
User Kakridge
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90+30=120
180-120=60
The measurement for angle G is 60 degrees.
And for angle J is the same as 90+30 which equals 120 degrees.
User Yousef Altaf
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