Question

किसी वर्ग की एक भुजा 20% की वृद्धि कर दी जाय तो उसके क्षेत्रफल
में कितने प्रतिशत की वृद्धि हो जाएगी?​

Answer 1

Answer:

44%

Step-by-step explanation:

de is increased by 20%

let initial length of side be x.

increased length =x+20%(x)

=1.2x

initial area = x(x)=x

2

increased area = (1.2x)(1.2x)=(1.44x

2

)

percent increase in area=

x de is increased by 20%

let initial length of side be x.

increased length =x+20%(x)

=1.2x

initial area = x(x)=x ²

increased area = (1.2x)(1.2x)=(1.44x ²)

percent increase in area=

(1.44x ²- x ² )/x ² ×100

=0.44×100

=0.44×100

percentage increase in are =44