Math, asked by sahithi525reddy, 1 year ago

1.L,M,N are midpoints of sides PQ,QR,RS of triangle PQR.MN=6cm;LN=5cm ;LM=4cm .then find the perimeter of triangle PQR.

Answers

Answered by 2092000

WE KNOW THAT A LINE DRAWN THROUGH THE MIDPOINT OF ONE SIDE OF A TRIANGLE TO THE SECOND SIDE BISECTS THE SECOND SIDE AND IS HALF OF THIRD SIDE.
HERE MN IS HALF OF PQ
NL IS HALF OF QR
LM IS HALF IS PR
QR=10
PR=8
PQ=12
PERIMETER=10+8+12=30CM

Answered by 1Rahulanand

by mid pt theorem we have LN=1/2QR so QR=10cm
Similarily PR=8cm and QR=6cm
So P=10+8+=24

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