1. Two sides of a triangle are \( 16 \mathrm{~cm} \) and \( 20 \mathrm{~cm} \). And their including angle is 120: Draws a rough Pigure of this. Find the altitude of the \( 20 \mathrm{~cm} \) long side. Find the area of the triangle. Also find its third side.
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From one end of this line segment, draw another line segment of 16 cm at an angle of 120 degrees. Connect the ends of these two line segments to form a triangle. Show more…
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