MCQ Practice Mathematics 📖 If the length of a rectangle is increased by 20% and width is decreased by 20 %, what is the change in area of the rectangle? Favorite Practice Add to Book Explanation & Answer Detailed explanations and answers are restricted. Unlock full access by logging in to your account. 🔒 Unlock the detailed explanation and answers Log In / Sign Up PreviousIf the height of a right square pyramid is increased by 12%, by what percent must the side of the base be increased, so that ... NextIf the price of an item is increased by 10% , the net effect on the price of the item is___