Solve Exercise 1 on pages 142 and 143 of Math 4 textbook

Guidance for solving Exercise 1 on pages 142 and 143 of Math 4 textbook

Solution method:
To find the area of a rhombus, multiply the lengths of its diagonals, then divide the result by 2. 

Here's the solution guide for Exercise 1 on pages 142 and 143 of Math 4 textbook, focusing on consolidation. Additionally, this section includes 2 other exercises: Solve Exercise 2 on pages 142 and 143 of Math 4 textbook and Solve Exercise 3 on pages 142 and 143 of Math 4 textbook. Let's explore the guide to solving Math 4 exercises on pages 142 and 143 for better understanding of the subject!