Question

length of a picture frame is 80cm and it's diagonal is 100cm find its perimeter​

Answer 1

Answer:

length is 80 cm

and diagonal is 100cm

diagonal=

$\sqrt{ {l }^{2} + {b}^{2} }$

100 =

$\sqrt{ {80}^{2} + {b}^{2} }$

1000 = 80**2 + b**2

1000 - 6400 = b**2

3600 = b**2

b= 60 cm

hope it helps!!

Answer 2

Answer:

mark as brainliest .

hope its helpful.

100 pecent true..