maths Hardi sharma book
circles with centre A, B, &c
having radius 2 cm and
radius of largest circle
is ( 4/√3+2)cm
ABC is an
equilateral triangle
A
Answers
Answered by
0
Answer:
circle with centre ABC and having radius 2 and radius large circle for example 2 cm is equal to need I don't understand which have minutes.
Answered by
0
Answer:
Step-by-step explanation:
iven radius =
2
cm
Therefore AO=
2
cm
Let OD be the perpendicular from O on AB
And AB =2cm
Therefore AD=1cm (perpendicular from the centre bisects the chord)
Now in triangle AOD,
AO=
2
cm
AD=1cm
And let angle AOD =θ
Therefore , sinθ=
2
1
Hence, θ=45
o
Therefore angle AOB =45
o
+45
o
=90
o
Then angle APB =
2
90
=45
o
{angle made by a chord at the centre is double of the angle
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