Question

One side of rhombous is 13 m and one of its diagonal is 1o, find another diagonal

Answer 1

one side is 13 cm
one diagonal is 10 cm
diagonals of rhombus bisect at right angle
so half diagonal which means 5 cm
Now,
by Pythagoras theorem,
13×13=5×5+ x×x
169=25+x×x
x×x=169-25
x×x=144
x=12 cm
so other diagonal will be twice x
=12×2
=24 cm