3. find the area of a square with side 27 cm.

4. What is the area of a triangular lot with a base of 50 meters and a height of 24 meters? Find the Area of the lot.

5. Allen bought a new house and is planning to repleace the carpet in two bedrooms.One bedroom is a shaped like a square with a side length of 9 meters.What is the area of the carpet that will fit in the bedroom?​