Question

in triangle pqr..........

Answer 1

X2=a.b

qs2=ps.sr

=16.20

=320

Geometric mean.

I hope u understand

Answer 2

QS^2=PS×SR...........(by geometric mean

corollary)

QS^2=16×20

QS^2=320

QS=√320

QS=√64×5

QS=16√5

hope it helps u ^_^ ^_^ ^_^

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