What is true about sides opposite congruent angles within a triangle?
1 answer:
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Since line DB is perpendicular to line AC, then arc AB = arc BC
Thus, 14x - 3 = 7x + 18
Collecting like terms,
14x - 7x = 18 + 3
7x = 21
Dividing both sides by 7, we have
substituting x into the above equation,
Hence, angle the arc AC makes at the centre is 78 degrees.
The answer is about 8.14 years :)
Because, ↓
Unit Rate =
which is equal to → 
and that's how I found out that my answer is 8.14 years
Because, ↓
Unit Rate =
and that's how I found out that my answer is 8.14 years