Answer:
You can determine if two triangles are similair if 2 angles are the same.
Step-by-step explanation:
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The measure of an arc is the size of the corresponding central angle, so angle 1 for AB,
Answer: B
Answer:
C
Step-by-step explanation:
By tracing the figure, we see that we go around a semicricle twice and go in a straight path twice. So the perimeter of this figure consists of two semicircles and two line segments, hence the answer is C.