Answer:
Explanation:
Remark
All triangles have 180 degrees.
In order that all sides be 12cm long, you need to draw a base line that goes on for more than 12 cm.
Mark off the (using a ruler) a line that is 12 cm from one of the line written about.
From that same endpoint, draw an angle that is 60o. Draw a line going 60 degrees from your first line.
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Just to finish the triangle, go to the other end of the 12 cm line. Draw another 60 degree angle. Make it so that it will intersect the second line you drew.\
Diagram first 2 steps