Back to Mathematical Olympiad
Difficulty: 1/102022 NMTC 2022 (QII-66)

The length of rectangular screen is 15 cm. Its area is 180 sq. cm. Its width is ________.

Guide / Hint

Hint 1: Use the area formula for a rectangle: .

Hint 2: Substitute the given values: .

Hint 3: Divide 180 by 15 to find the width.

Solution

Step 1 (Rectangle Area Formula): The area of a rectangle is given by the product of its length and width :

Step 2 (Solve for Width W): We are given Area = 180 sq. cm and Length = 15 cm. We isolate :

Step 3 (Conclusion): The width of the screen is exactly 12 cm.

Ready to track your progress and master these topics?

Create a free account