ABC is a right angle triangle with <b= 90° AB=12cm, BC=13cm . A circle with centre O is inscribed in the triangle. find the radius of the circle. THANK YOU!!!
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it is a easy but a lengthy question
join the centre of cirle to the edges of the triangle
the sides of triangle are the tangents to the cirlce
join the centre of the circle to the tangents so they are perpendicular
3 small triangles will be formed
find the third side by pythagorus theorm
are of bigger triangle is half*base*height
even the areas of smaller traingle is half*base*height
area of bigger triangle =sum of yhe areas of smaller traingle
in smaller triangle heights are the radius
are solve it
join the centre of cirle to the edges of the triangle
the sides of triangle are the tangents to the cirlce
join the centre of the circle to the tangents so they are perpendicular
3 small triangles will be formed
find the third side by pythagorus theorm
are of bigger triangle is half*base*height
even the areas of smaller traingle is half*base*height
area of bigger triangle =sum of yhe areas of smaller traingle
in smaller triangle heights are the radius
are solve it
math69boi:
I solved it s moment back. the length is 2cm but still thank you for your answer friend!
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