kp253665 kp253665

11-04-2020
Mathematics

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Help with questions 10-11

Help with questions 1011 class=

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chloegdeleon chloegdeleon

11-04-2020

Answer:

10. x=15 degrees

11. x=10 degrees

Step-by-step explanation:

For these triangles inscribed in the circle, the top angle is always 90 degrees. Because of this, we can subtract 90 degrees from 180 degrees and be left with 90 degrees. For problem 10, 30+4x=90, so x=15. For problem 11, 4x+5x=90, so x=10

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