Answer: Triangle A and Triangle C
The x axis is the horizontal flat axis (think of it as the ground). Reflect triangle A over this horizontal line and you end up with triangle C. The same can be said in reverse from C to A.
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Answer:
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Step-by-step explanation:
Answer:

Step-by-step explanation:
we know that
----> by complete circle
we have
----> by central angle
so
substitute in the equation above

