Find the perimeter of each of the two noncongruent triangles where a = 15, b = 20, and a = 29°

Answer with explanation:

Using Sine Rule for Congruence of Triangles

Using Angle Sum Property of Triangle

⇒∠A+∠B+∠C=180°

⇒29°+41°+∠C=180°

⇒∠C=180°-70°

⇒∠C=110°

→Again Using Sine Rule

Length of third Side =28.92 unit

So,Perimeter of Triangle

=Sum of sides of triangle

=a +b +c

       =15 + 20 +28.92

       = 63.92 unit  

it's d

step-by-step explanation:

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