If numbers such as\( \sqrt4 = 2, \sqrt9 = 3\) are considered, Then here, 2 and 3 are rational numbers.
Thus, the square roots of all positive integers are not irrational.
Prove that $7\sqrt{5}$ is an irrational number.
Prove that $6\sqrt{3}$ is irrational.
(i) The kind of person the doctor is (money, possessions)
(ii) The kind of person he wants to be (appearance, ambition)
ABCD is a quadrilateral in which AD = BC and ∠ DAB = ∠ CBA (see Fig. 7.17). Prove that
(i) ∆ ABD ≅ ∆ BAC
(ii) BD = AC
(iii) ∠ ABD = ∠ BAC.
