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ANEK [815]
3 years ago
6

In triangle $ABC,$ $AB = BC = 17$ and $AC = 16.$ Find the circumradius of triangle $ABC.$

Mathematics
1 answer:
sweet-ann [11.9K]3 years ago
6 0

Answer:

R = 9.63\ units

Step-by-step explanation:

Given

AB = BC = 17

AC = 16

Required

Determine the circumradius, R

The circumradius is calculated as follows;

R = \frac{AB * BC * AC}{\sqrt{(AB + BC + AC)(AB + BC - AC)(AB + AC - BC)(AC + BC - AB)}}

Substitute the values of AB, BC and AC

R = \frac{17 * 17 * 16}{\sqrt{(17 + 17 + 16)(17 + 17 - 16)(17 + 16 - 17)(16 + 17 - 17)}}

Evaluate the denominator

R = \frac{17 * 17 * 16}{\sqrt{(50)(18)(16)(16)}}

R = \frac{4624}{\sqrt{230400}}

Take square root of 230400

R = \frac{4624}{480}

R = 9.63\ units <em>(Approximated)</em>

<em>Hence, the circumradius is 9.63</em>

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