Q212
ABCD is a square and AEFG is a rectangle. Area of each of them is 36 sq.m. E is the mid-point of AB. The perimeter of the rectangle AEFG is :
ABCD is a square and AEFG is a rectangle. Area of each of them is 36 sq.m. E is the mid-point of AB. The perimeter of the rectangle AEFG is :


A.
12 m
B.
18 m
C.
30 m
AnswerD.
36 m
Answer: Option C
Solution
Answer: Option C
Solution:
Area of square ABCD = 36 m2 AB = m = 6 m
AE = × AB = 3 m
Area of rectangle AEFG = 36 m2
∴ AE × EF = 36
⇒ EF = = 12 m
Perimeter of rectangle AEFG :
= 2 (AE + EF)
= [2 (3 + 12)] m
= 30 m