If each side of a square is increased by 25%, find the percentage change in its area?
let each side of the square be a , then area = a2
As given that The side is increased by 25%, then
New side = 125a/100 = 5a/4
New area = 5a42
Increased area= 25a216-a2
Increase %=9a2/16a2*100 % = 56.25%
Five angles of a hexagon measure 116 deg each. What is the measure of the remaining angle?
A right-angled triangle ABC is right-angled at B, and tan A = 4/3. If AC = 25 cm, the length of BC is
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