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laila [671]
3 years ago
13

Help me Asap!! please

Mathematics
1 answer:
UkoKoshka [18]3 years ago
3 0

Answer:

I believe the perimeter is 90 and the area is 300sqft

Step-by-step explanation:

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trinomial

Step-by-step explanation:

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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°.
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Answer:

BC 4 in

Step-by-step explanation:

The steps for construction;

  • Using a ruler draw line AB 4 inches  and label the end points A and B
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From calculation, length BC can be found by the formula;

BC=\sqrt{a^2+b^2-2*a*b*cosA}------where a=b=4 in , cos A = cos 60°

BC=\sqrt{4^2+4^2-2*4*4*cos60}

BC = 4 in

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