1 answer:
Answer:
42
Step-by-step explanation:
Let the missing length be represented as "x".
Based on the angle bisector theorem, we have the following equation:
x/21 = 30/15
x/21 = 2/1
Cross multiply
x*1 = 2*21
x = 42
Missing length = 42
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13 + 22 = 35 degree change. 10-3 = 7. 35/7 = 5 degrees per hour.
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Answer:
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