Pls answer this 11. A trausphen.-al of a building contains of air Find
12. Find rnedia:n the follov.tng observations
sr. ss. 90.55, 92.33
If ts replaced Sy 99. what uill the new median ?
Section 'C'
Wesrion numbers 13 to 22 carry 3 marks each.
13. Solve for x :
31+2 1)
14. In the given figure, AD is median. Prove thal ar(AABD)
= ar(SACD).
c
IS. AC and BD are chords of a circle which bisect each other. Prove that
(i) AC and BD are diameters (ii) ABCD is a rectangle.
2
— a2)3
16. Simplify .
A and on the same side of a line m, AD Im and BE m