To draw a pair of tangents to a circle which are inclined to each
other at an angle of 60degree
, it is required to draw tangents at end points
of those two radii of the circle , what should be the angle between
them.
I marks ques. plz ans me no sPAM
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Answered by
0
Answer:
(D) The angle between them should be 120∘ because in that case the figure formed by the intersection point of pair of tangent, the two end ponits of those two radii ( at which tangent are drawn ) and the centre of the circles is a quadrilateral. Hence, the required angle between them is 120∘.
Answered by
1
Answer:
Given Mean of 10 observations is 20
⟹Sum of 10 observations is S=20×10=200
If each observation is added by 5 Then sum of observations is added by 5×10=50
⟹S
′
=200+50=250
Mean of new observation is
10
S
′
=
10
250
=25
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