book Maths Puzzle Numerical Ability

The spoke of a wheel reaches from the center of the wheel to its rim. If the circumference of the rim of the wheel is 42 inches, how long is each spoke? Round your answer to the ne

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book Other Question
One of two supplementary angles is 4 times as large as the other. What is the complement of the smaller angle? Find c, when b=20 and A=70 degrees to the nearest tenth.