Question

right angle triangle sides are 15cm and 20cm​

Answer 1

A^2+B^2=C^2 (pythagoras theorem)

A=15cm

B=20cm

C=?

15^2+20^2=C^2

225+400=C^2

625=C^2

C=root (625)

therefore C=25 ( since 25×25=625 )

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