By the Pythagorean theorem, the exact tangent length in Example 3 (radius $2$ cm, distance $5$ cm) is —

Question

Accepted Answer

$\sqrt{21}$ cm

Answer

$\sqrt{29}$ cm

Answer

$\sqrt{25}$ cm

Answer

$\sqrt{9}$ cm

By the Pythagorean theorem, the exact tangent length in Example 3 (radius 222 cm, distance 555 cm) is —