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7. Given that /2 is irrational, prove that (5+3/2) is an irrational number8. In Fig. 1, ABCD is a rectangle. Find the values of x and y.d-14 cm30 cm(Fig. 1)9. Find the sum of fĂźrst 8 nditiplec of

Answer»

in rectangle, opposite sides are equalso, AD=BC & AB=CDso, x-y=14....... (1) & x+y=30....... (2) on adding 1 &2 equationwe get, 2x=44 x=22putting the value of 'x' in equation (1) we get, 22-y=14 y=22-14 y=8answers: x = 22 & y = ________________________



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