Answer:
B) 30 cm
Step-by-step explanation:
It forms a right triangle. We use the Pythagorean theorem and find the length of RT.
RT^2 = PT^2 + RS^2
RT^2 = 24^2 + 18^2
RT^2 = 576 + 324
RT^2 = 900
Taking the square root on both sides, we get
RT = 30 cm
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