Draw a line BC=7 cm construct an angle of 75 degree on B extend the line to X cut an arc of 13 cm mark it as D join CD draw perpendicular bisector of CD mark A on BD  join AC hence ABC is the required triangle
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i want to ask if you have any other book
For 13 cm arc where should I keep centre?
1. Draw a line using scale and mark BC=7 cm
2. Construct  angle of 75 degree at B  using protractor.
3. Draw line BD= 13 cm.
4. Join  CD.
5. Bisect line CD and  mark as E.
6. Draw perpendicular at E to intersect BD at A.
7. Join AC to get triangle ABC.

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