(a)
To calculate which
(a)
Answer to Problem 4C
Area of circle of Radius 7 cm
Explanation of Solution
Given Information: Area of circle of Diameter 12 cm and Area of circle of radius 7 cm.
Formula Used:Comparison
Calculation:
Area of circle of Diameter 12 cm = 113.14 cm2
Area of circle of Radius 7 cm = 154 cm2
Hence,
Area of circle of Radius 7 cm has greater area then Area of circle of Diameter 12 cm.
(b)
To calculate the Area.
(b)
Answer to Problem 4C
113.14 cm2
Explanation of Solution
Given Information: Diameter = 12 cm.
Formula Used:Area of circle =
Calculation:
Diameter = d, Radius = r.
Now, diameter is of 12cm.
So,
Put the value of diameter to find the radius.
Hence,
Area of circle =
Area of circle =
Now,
Put the value of
Area of circle =
Area of circle = 113.14cm2
(c)
To calculate the Area.
(c)
Answer to Problem 4C
154 cm2
Explanation of Solution
Given Information: Radius = 7 cm.
Formula Used:Area of circle =
Calculation:
Diameter = d, Radius = r.
Area of circle =
Area of circle =
Now,
Put the value of
Area of circle =
Area of circle = 154 cm2
Chapter 10 Solutions
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
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