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# The legs of an isosceles triangle are each 45 cm long.The measures of the base angles are each 70°. What is the measure of the third side?

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- Engr. RonaldLv 72 months agoFavorite Answer
apply the law of sine

..a................b

---------=--------------

.sin(A)........sin(B)

..45..............b

--------- = -----------

.sin(70) ....sin(40)

45sin(40) = bsin(70)

b = 30.78 cm or 31 cm answer//

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