(i) angry – angrily (ii) happy – happily
(iii) merry – merrily (iv) sleepy – sleepily
(v) easy – easily (vi) noisy – noisily
(vii) tidy – tidily (viii) gloomy – gloomily
(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.
