In Figure point A is the centre of the circle. AN =10cm. Line NM is tangent at M. Determine the radius of the circle if MN=5cm.
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Answer:
join A to MN at point T
make right angled triangle
using Pythagoras theoram
AN2=AT2+TN2
(10*10)=AT2+(2.5*2.5)
100-6.25=AT2
√93.75=AT
AT=9.66
radius=9.66
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Step-by-step explanation:
Radius mean it's of diameter mean
in the diameter is 10isAN MN is 5cm
you add the cm answer is 15but radius is the of the diameter.
Final answer is 7,1/2,seven and half is answer
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