Question

18. Radhika invested money for a period from May 2006 to April 2008 at the rate of 12% per
annum. If interest received by her is 1620. Find the money invested.
19. PS is a median of a triangle PQR. Is PQ+QR+RP > 2PS? (Prove it)
A
20. Draw an appropriate double bar graph to represent the given information,
Children who prefer School A School B School C School D
Walking
40
15
20
cycling
45
25
35
35
55
SECTION:D
(4mks)
21. ABC is an isosceles triangle with AB=AC and AD is one of its altitude.
i) State the three pairs of equal parts in AADB and AADC
ii) Is AADBA AADC ? Why or why not?
I
il) Is 2B - 2 C? Why or why not?
B
iv) Is BD = CD? Why or why not?
D​

Answer 1

Answer:

It is given that two circle having radii 5.5 cm and 4.2 cm touch each other externally. We know, the distance between the centres of the circles touching externally is equal to the sum of their radii. Thus, the distance between their centres is 9.7 cm.