Noor is baking a round cake for Ahmed’s birthday. She uses a cake pan with a radius of 10 cm. To figure out how much cake batter she needs, she calculates the area of the cake pan using the formula for the area of a circle: π × radius². So, she does: 3.14 × 10 × 10 = 314 square centimeters. This tells her how much batter to prepare to fill the pan.

Alaa wants to wrap a birthday gift for her brother Adem. The box is 30 cm long and 15 cm wide. To make sure she has enough wrapping paper, Alaa calculates the area of the top of the box: 30 × 15 = 450 square centimeters. This helps her know how much paper she needs to wrap the gift properly.

Fatima is helping her little brother build a play tent in their garden. The front of the tent is shaped like a triangle, and Fatima wants to know how much fabric they'll need to cover it. She measures the base of the triangle and finds it to be 5 meters. Then she measures the height from the ground up to the top point of the triangle, which is 2 meters.