Hinge Theorem

Author:
kathleenh

Triangle ABC and DEF have two pairs of congruent corresponding sides. Select all the correct statements.

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Move point C so that angle A becomes larger and smaller. What do you notice about how this affects the length of the opposite side BC?

Adjust point C so that angle A has a measure of approximately 30 degrees, and adjust point F so that angle D has a measure of approximately 45 degrees. Which statement is correct?

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Which statement(s) is a correct conclusion of this exploration?

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