Question

If the side of a square is increased by 25% then its area is increased by:​

Answer 1

Answer:

(9/16)a²

Step-by-step explanation:

let the side of the square='a' cm

so, it's area=a²

now, side is increased by 25%=>a+25/100*a

=>a+1/4*a=>5/4*a

new side=5/4a

so, new area=(5/4*a)²

=>(25/16)a²

so, increase in area=25/16a²-a²=9/16a²