टूथ टेबुल खींचकर सिद्ध करे की ` AB +BC +Cbar(A) = AB +Cbar(A)`

Draw AB _|_ BC .

Find AB and BC, if: (i)

Draw AB bot BC.

Find AB and BC, if: (ii)

Find AB and BC, if: (iii)

FInd the AB:BC

AB· : L:: BC:?

Prove that A(BC)=(AB)C

Now draw a triangle ABC and measure its sides. Find the sum of the sides AB + BC, BC + AC and AC + AB, compare it with the length of the third side. What do you observe? You will observe that AB + BC > AC, BC + AC > AB and AC + AB > BC.

Now draw a triangle ABC and measure its sides. Find the sum of the sides AB + BC, BC + AC and AC + AB, compare it with the length of the third side. What do you observe? You will observe that AB + BC > AC, BC + AC > AB and AC + AB > BC.