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simbupls
05.10.2019 •
Mathematics
Which of the following could be the perimeter of a rectangle with an area of 18 square centimeters?
a) 24 centimeters
b) 28 centimeters
c) 18 centimeters
d) 16 centimeters
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Ответ:
The correct answer is c) 18 centimeters
Step-by-step explanation:
Given:
A = 18 cm²
We know that the formula for calculating area of a rectangle is
A = a · b where a is length and b is width
Possible choices is 6 · 3 and 9 · 2
Formula for calculating perimeter is
P = 2 ( a + b)
P₁ = 2 (6 + 3) = 2 · 9 = 18 cm²
P₂ = 2 (9 + 2) = 2 · 11 = 22 cm²
The obvious choice is P₁ = 18 cm²
God with you!!!
Ответ:
the number of students who do not delve in any of the 2 areas is 220
Step-by-step explanation:
The computation of the number of students who do not delve in any of the 2 areas is shown below:
= Total students - maths students - english students - both subject students
= 900 - 350 - 220 - 110
= 220
Hence, the number of students who do not delve in any of the 2 areas is 220