Draw a large copy of  △ABC on scratch paper and cut it out.Fold down vertex B so that it l...

Draw a large copy of  △ABC on scratch paper and cut it out.

Fold down vertex B so that it lies on  and so that the fold line is parallel to

Now fold vertices A and C into point B

a. What does the resulting figure tell you about the measures of ∠A, ∠B, and ∠C? Explain.

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b. What kind of polygon is the folded shape and what is the length of its base?

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c. Try this same procedure with two other types of triangles. Are the results the same?