△bcd is a right triangle. the length of the hypotenuse is 22 cm. the length of one of the legs is 18 cm. what is the length of the other leg? enter your answer in the box as a decimal rounded to the nearest tenth.

Use the Pythagorean Theorem to solve for the missing leg.

a² + b² = c²   ; where "a" and "b" are the legs and "c" is the hypotenuse

18² + b² = 22²

        b² = 22² - 18²

        b² = 484 - 324

        b² = 160

        b = 40

40 cm

the answer is c: divide the arc's degree measure by 360°, then multiply by the circumference of the circle.