The dimensions of a rectangle are 50a’b? and 200a
A student found the perimeter as follows:
What is the student's error?
O The student should not have multiplied each
expression by two.
The student simplified 2/50aºb? incorrectly.
The student simplified 21200a?
incorrectly.
o The student incorrectly simplified
10ab12a + 20a 2a
250ab2+2 200a = 2-5ab 2a +2-10a2a
= 10ab 2a + 20a 2a
= 30ab\2a
DONE

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