Question

8. In the right angle-triangle ABC, AB (x + 3) cm, AC = (y + 7) cm and BC = (x + y) cm Express x in terms of y.​

Answer 1

R.E.F. Image.

Area =150cm^2

Area = 1/2×base×height

150= 1/2x(x+5)x(x)

300=x^2+5x

x^2+20x-15x-300=0