Q. 2 B4.3( 4 Votes )

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Answer :

We need to draw a triangle ABC with ABC = 120°


B = 120°


Since we are given only one angle to draw a triangle we need to assume the other two angles of a triangle.


It is impossible to draw a triangle with only one angle.


A + B + C = 180°


A + C = 60°


Let’s assume A as 30° and C as 30°


1. Let us take AB as base of the triangle.


2. So, draw a line segment and name it as AB (Here length is not specified so we can assume that also.)



3. Place the protractor at B and draw a ray with 120°



4. Place the protractor at A and draw a ray with 30°



5. 2 Rays will intercept at some point and name that point as C


6. Thus, we have drawn a triangle with ABC = 120°.


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