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Find the inradius of triangle ABC.

 

Find the circumradius of triangle ABC.

 

 Jul 2, 2022
 #1
avatar+124526 
+1

Inradius =     area of triangle  / semi-perimeter

 

Semiperimeter  =  ( 6 + 5 + 4.5)  /2  =    7.75

 

Area =   sqrt  [ 7.75 * (7.75 - 6)  * (7.75  - 5) * (7.75 - 4.5) ]   ≈  11

 

Inradius =  11 / 7.75  ≈  1.42 cm 

 

 

cool cool cool

 Jul 2, 2022
 #2
avatar+124526 
+1

Circumradius =      product of the sides  / [4 * area ]  =   (5 * 6 * 4.5)  /(4 * 11)  ≈  3.07 cm

 

 

cool cool cool

 Jul 2, 2022

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