Question

Which is correct
A
B
C
D

Answer 1

Hey mate your answer is below

Answer:

12 m²  

Step-by-step explanation:  

Length of rectangle = L  

Breadth of rectangle = B  

According to question:

 

L = 3B - 5 ....(1)    

Perimeter = 14 metre  

2(L + B) = 14  

From equation (1)  

2(3B - 5 + B) = 14  

2(4B - 5) = 14  

4B - 5 = 14/2  

4B - 5 = 7  

4B = 12  

B = 12/4  

B = 3 m

 

If B = 3 m then from equation (1)  

L = 3B - 5  

= (3 × 3) - 5  

= 9 - 5  

= 4 m  

Area of rectangle  

A = LB  

= 4 m × 3 m  

= 12 m²

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