Question

The side of a triangle 12 cm 14 cm and 15 cm find the parameter of joining the midpoint of the triangle

Answer 1

Let midpoints of AB , BC and CA are P , Q and R respectively.

Acordingly to

mid points theorem:-

PQ = AC/2 = 7/2= 3.5 cm……….(1)

QR = AB/2= 12/2=6 cm…………(2)

RP= BC/2=15/2=7.5 cm…………..(3)

Perimeter of ∆PQR= (3.5+6+7.5) cm = 17 cm. Answer.

Hope this will help you ^_^

Answer 2

Perimeter of a Triangle

= Side+Side+Side

=(12+14+15)cm

=41 cm

Method nahi atta

I hope this will help you...