If the length of the angle of a cube is increased by 10%, what is the percentage increase in the area of the whole surface?
If the length of the angle of a cube is increased by 10%, what is the percentage increase in the area of the whole surface?
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Answer:
After 50% increase, each edge of the cube becomes 150/100 of the original. Thus, the surface area of the cube becomes (150/100)^2 = 225/100 of the original. Hence, increase in perecentage of surface area = (225-100) = 125% .