construct a triangle of perimeter 12cm and with base angle 60° and 50°
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the triangle of sides 3cm,4cm,5cm
and angles of 50,60,70 degrees
draw a rough diagram as above
step1-draw a line segment BC of 5cm. make angle 50degree at C and 60 degree at B.
step-2-draw long line at B andC .
step3- mark A as where both lines intersect drawn from point B&C
step4- measure the angle of A and side AB&AC
step5- triangleABC will be ready
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