What will be the perimeter of triangle if AB+BC=18CM, BC+CA=17 cm, and CA+AB=25 cm.
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AB+CA=18cm. -. (1)
CA+BC=17cm. -. (2)
by solving 1&2
AB+CA=1. -. (3)
AB+CA=25. -. (4)
by solving 3&4
we obtain 2CA=24
CA=12cm
so,BC=5cm & AB=13cm
so, the perimeter of the triangle= 5+12+13=30cm
CA+BC=17cm. -. (2)
by solving 1&2
AB+CA=1. -. (3)
AB+CA=25. -. (4)
by solving 3&4
we obtain 2CA=24
CA=12cm
so,BC=5cm & AB=13cm
so, the perimeter of the triangle= 5+12+13=30cm
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