If π = 3.14, then the value of π² is
a) 9.8596
b) 9.860
c) 9.86
d) 9.9
Answers
Answered by
12
well if you find π² = (3.14)²
you will get , π² = 9.8596
But as you know about significant figure. You shouldn't ignore the rule of significant for multiplication. e.g., When measurements are multiplied or divided, the answer can contain no more significant figures than the least accurate measurement.
Here significant of 3.14 = 3
so, significant of π² = (3.14) × (3.14) must be 3
so, we have to round off
e.g., π² = 9.8596 ≈ 9.86
Hence, correct option is (c)
you will get , π² = 9.8596
But as you know about significant figure. You shouldn't ignore the rule of significant for multiplication. e.g., When measurements are multiplied or divided, the answer can contain no more significant figures than the least accurate measurement.
Here significant of 3.14 = 3
so, significant of π² = (3.14) × (3.14) must be 3
so, we have to round off
e.g., π² = 9.8596 ≈ 9.86
Hence, correct option is (c)
Answered by
1
Explanation:
a) is the correct answer
a) 9.8596
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