Prove equal chords in the same circle subtend equal angles at circumference. Thank you!

Let AB and CD be two equal chords on the circumference. If you consider the triangles AOB and COD, where O is the center of the circumference, you have:

So, the two triangles have the same side, and are congruent by the SSS theorem.

This implies that they also have the same angles, and in particular, the angles AOB and COD are the same.

if you are saying purchasing 3 social media ads and one newspaper ad counts as one purchase then there are:

6 purchases

if you are asking how many of each then:

18 social media ads

6 newspaper ads

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step-by-step explanation: