Question

Three sides of a triangle are
3x+7y, 6x-4y and x+y. Find its perimeter

Please give answer ​

Answer 1

Answer:

$perimeter \: = sum \: of \: all \: sides$

$= \: 3x + 7y + 6x - 4y + x + y$

$= 10x + 4y$

Answer 2

Answer:

X = 20°1 × =20°3 x = 60°5×=100°

The sides of triangle measure X+Y+ 2=180°

hope it helps you