In order to covert temperature from Kelvin to Celsius scale, we have to subtract 273 from the given value because K - 273 = °C
(a) 293 K - 273 = 20°C
(b) 470K - 273 = 197°C
(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.
