PUMPA - SMART LEARNING

எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

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Construct the incentre of \(\Delta ABC\) with \(AB = 6 \ cm\), \(\angle B = 65^\circ\) and \(AC = 7 \ cm\). Also draw the incircle and measure its radius.
 
Construction:
 
Step 1:
using the given measurements. .
 
Step 2: Construct the
of any two angles (\(A\) and \(B\)) and let them meet at \(I\). Then \(I\) is the
of \(\Delta ABC\). Draw perpendicular from \(I\) to any one of the side (\(AB\)) to meet \(AB\) at \(D\).
 
Step 3: With \(I\) as centre and \(ID\) as radius
. This circle touches all the sides of the triangle
.
 
Inradius \(=\)  
.
Answer variants:
Draw the \(\Delta ABC\)
draw the circle
angle bisectors
externally
\(1.9 \ cm\)
internally
incentre
\(2.1 \ cm\)