Draw a triangle $A B C$ in which $A B = 4.5 c m,$ $B C = 6 c m$ and $∠ B = 80^{\circ}$ .

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Solution

Steps of construction :
1) Draw a line segment $B C = 6 c m .$
2) Make $∠ A B C = 80^{\circ}$ using protractor.
3) Cut an arc of radius $4.5 c m$ taking $B$ as center, such that $A B = 4.5 c m .$
4) Join $A C .$
Therefore, $△ A B C$ is the required triangle.

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Draw a triangle ABC in which AB=4.5 cm, BC=6 cm and ∠B=80∘.

Steps of construction :1) Draw a line segment BC=6 cm.2) Make ∠ABC=80∘ using protractor.3) Cut an arc of radius 4.5 cm taking B as center, such that AB=4.5 cm.4) Join AC.Therefore, △ABC is the required triangle.

Draw a triangle $A B C$ in which $A B = 4.5 c m,$ $B C = 6 c m$ and $∠ B = 80^{\circ}$ .

Steps of construction :
1) Draw a line segment $B C = 6 c m .$
2) Make $∠ A B C = 80^{\circ}$ using protractor.
3) Cut an arc of radius $4.5 c m$ taking $B$ as center, such that $A B = 4.5 c m .$
4) Join $A C .$
Therefore, $△ A B C$ is the required triangle.