A symmetrical triangular pyramid has the number 1,2,3,4 painted on its faces.
Find the probability when it is tossed it will land so that; (5 marks)
(a) the 2 face is downwards,
(b) the sum of the numbers on the three faces showing is odd.
8.Given; AD/DB = 2/1 (5 marks)
Prove; AX/XB= 3/1
9.Congruent chords PQ and RS are produced to meet at X. (5 marks)
Prove that ∆XPR is isosceles.