Question

The sides of a right angle triangle PQR are PQ = 7 cm, PR = 25 cm and Q = 90°
respectively. Then find, tan P-tan R.

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Answer 1

Answer:

R.E.F image

In △ PQR using pythagoras theorem

(PR)

2

=(PQ)

2

+(QR)

2

625-49=(QR)

2

(QR)

2

=576

QR=24CM

now tan P =

7

24

and tan R =

24

7

tanP-tanR=

7

24

−

24

7

=

168

576−49

=

168

527

solution