Q n 15 DC - DB and ZABC •
A chord of length 10 cm subtends an angle 1200 at the centre ofa circle. Calculate the
distance from the centre.
In a rectangle ABCD, AB — 20 cm. ZBAC 600. Calculate the length of the side Bc.
In the figure. alongside. ABCD is a
square with each side 20 cm.
nor - 300. OD 25 cm.
Find the height of vertex B above the
Inriznntal line OX
(Take6-l.732)
EXERCISE 29
300
ANSWERS
D
Horizontal Line
x
Two angle i
complemerM
AOPM in
therefore Z
OP-h
sin A
cosecA a
Now.
consid
and H
Sin
