Find the radii of the inscribed and circumscribed circles around it, if the sides of the triangle are 25 dm, 29 and 36 dm.

univerkov | May 14, 2021 | education

In the second task, we do everything in the same way as the first.
p = 1/2 * (25 + 29 + 36) = 45 (dm).
r = √ ((20 * 16 * 9) / 45) = √64 = 8 (dm).
R = 25 * 29 * 36/4 * √ (45 * 20 * 16 * 9) = 26100/1440 = 18.125 (dm).
Answer: r = 8 dm, R = 18.125 dm.

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