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Sagot :
Answer:
r=60°
Step-by-step explanation:
Both of the angles together make up 90°. we know this because of the red little box denoting 90°.
If one of the angles is 30°, to find the other one, simply subtract 30 from 90.
90-30=60
r=60°
60 (degrees)
It’s 60 degrees because it’s a right angle (90 degrees) and subtracting 30 from 90 gives us 60.
It’s 60 degrees because it’s a right angle (90 degrees) and subtracting 30 from 90 gives us 60.
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