alleryStart learning →Triangle sides are 13, 14 and 15 cm and its area is 84 cm². Find the inradius.
A3.5 cm
B4 cm
C5.6 cm
D6 cm
Answer & Solution
Correct answer: B. 4 cm
The semiperimeter is 21, so inradius = 84/21 = 4 cm.
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