B. Write an equation for the following statements:
1. The circumference (C) of a circle varies directly as its diameter (dl).
2. The perimeter (P) of a square varies directly as the distance(d).
3. The area (A) of a triangle is proportional to its height (h).
4. The weight (W) of an object is directly proportional to its mass (m).
Answers & Comments
Write an equation for the following statements:
1. The circumference (C) of a circle varies directly as its diameter (d).
c = kd ; k = constant of variation
2. The perimeter (P) of a square varies directly as the distance (d).
P = kd ; k = constant of variation
3. The area (A) of a triangle is proportional to its height (h).
A = kh ; k = constant of variation
4. The weight (W) of an object is directly proportional to its mass (m).
W = km ; k = constant of variation
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