Question

pythagoras therom 7 std

Answer 1

16 is the answer of this question..
20 square - 12 square = MN
please mark as brainliest if you like so

Answer 2

Pythagoras therom
MN square = LM square - LN square
MN square = 12 square - 20 square
MN square = 144 - 400
MN square = 256
MN square =
$\sqrt{256}$

MN square = 13 cm