Question

in ∆ PQR , angle Q is 90 ° , QR is 21 cm and PR is 29 cm then find ar (PQR) please explain with proper method​

Answer 1

Answer:

Find QR by Pythagoras Theorem.

So, QR = 12 cm

Now we have both base and height

So ar(PQR) = 1/2 x 12 x 5

= 30 sq.cm.

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