What is the best estimate of the number of centimeters (cm) in 1 yard? (Note: 1 yard = 3 feet; 1 foot = 12 inches; 1 inch = 2.54 cm)

Rationale

There are approximately 90 centimeters in 1 yard.

To determine the number of centimeters in a yard, we need to use the conversion factors provided. First, we convert yards to feet, then feet to inches, and finally inches to centimeters.

A (180 cm) YOUR ANSWER

This value is incorrect. It seems to double the actual conversion result. If 1 yard equals 3 feet and 1 foot equals 12 inches, that gives 36 inches in a yard. Converting inches to centimeters using the provided ratio (1 inch = 2.54 cm) would yield 91.44 cm, not 180 cm.

B (72 cm) YOUR ANSWER

This value is incorrect. It appears to represent the conversion from 2 yards to centimeters (2 yards = 72 inches = 182.88 cm), not the conversion from 1 yard to centimeters (1 yard = 36 inches = 91.44 cm).

C (36 cm) YOUR ANSWER

This value is incorrect. It seems to confuse the number of inches in a yard (36 inches) with the number of centimeters in a yard. Following the provided conversion ratios would equate 1 yard to approximately 91.44 cm, not 36 cm.

D (90 cm) CORRECT

This value is correct. While it is not perfectly accurate (1 yard actually equates to about 91.44 cm), it is the closest approximation provided. This value is obtained by converting 1 yard to inches (1 yard = 3 feet = 36 inches) and then converting inches to centimeters (36 inches = 91.44 cm).

Conclusion

The conversion from yards to centimeters involves several steps, using the conversion ratios for yards to feet, feet to inches, and inches to centimeters. The closest approximation to the actual conversion result (91.44 cm in 1 yard) among the provided choices is 90 cm. It is important to apply all conversion ratios correctly to obtain the most accurate estimate.

What is the best estimate of the number of centimeters (cm) in 1 yard? (Note: 1 yard = 3 feet; 1 foot = 12 inches; 1 inch = 2.54 cm)

There are approximately 90 centimeters in 1 yard.

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