On a piece of paper, use a protractor and a ruler to construct △ABC with AB=4 in., AC=4 in., and m∠A=60°. Which statement is true about this triangle?

BC=3 in.

BC=4 in.

BC=5 in.

The length of BC¯¯¯¯¯ cannot be measured.

BC 4 in

Step-by-step explanation:

The steps for construction;

From calculation, length BC can be found by the formula;

------where a=b=4 in , cos A = cos 60°

BC = 4 in

m∠vru = 80°

m∠urw = 15°

step-by-step explanation:

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