if the height of a triangle is decreased by 40 % , land its base is increased by 40 % , what will be the effect on its area ?
regd effect = ∣ ∣ 40 − 40 − 40 × 40100 ∣ ∣ % = − 16 % | 40 − 40 − 40 × 40100 | % = − 16 % i . e . , the area will decrease by 16 % answer d
subtract(const_100, divide(multiply(subtract(const_100, 40), add(const_100, 40)), const_100))