Question

In square PQRS, IF PQ =15 cm ,them PR =_______cm.​

Answer 1

Answer:

15√2

Step-by-step explanation:

in triangle PQR

PR²=PQ²+QR²

=15²+15²

=225+225

=2(225)

PR = 15√2cm

Alternate method:-

as PR is diagonal. the length of the diagonal of square is a√2 where a is side of the square hence answer is 15√2cm

Answer 2

Step-by-step explanation:

Length of diagonal in a square = a√2 = 15√2 cm

[If u don't wanna do by this, then form a Δ with 2 sides and a diagonal and apply pythagoras theorem]

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