Question

Ali draw a square and erase that...he again draw a new square whose sides are three times large than first one.....by which percentage the area of square increased?​

Answer 1

Answer:

800%

Explanation:

% increase = 100 × (Final - initial)/ initial

for 1st case area = a^2

for 2nd case area = (3a)^2

so, % increase = 100 × (9a^2 - a^2)/ a^2

= 800.