5. Three girls Rejia, Mary and Nilakshi are playing
a game by standing on a circle of radius 5m
drawn in a park. Rejia throws a ball to Mary,
Mary to Nilakshi, Nilakshi to Rejia. If the
distance between Rejia and Mary and between
Mary and Nilakshi is 6m each, what is the
distance between Rejia and Nilakshi?
Answers
Answered by
2
Answer:
ans is 19.4
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Answered by
2
Answer:
9.6m
Step-by-step explanation:
let R,M and N be the position . Rezia ,Mary ,Nilakshi
given RM= MN =6
r= 65 m
construction - OR , OM and OL perpendicular RM are drawn
let , RK = X
RM PERPENDICULAR OL bisects it
therfore RL = LM = 3cm
therefore, in rt triangle OLM
OL square + LM square =OM square
= " " + 3 square = square
= ol square = 25 - 9
= root over 16
= 4 cm
now , ar (ORK) = 1/2 × RM ×OL = 1/2 × OM× RK
= 1/2 × 6 ×4=1/2×5× x
= 12 ×2/5 = x
therefore RN = 2 ×24/5 =48/5 = 9.6 cm
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