Solve exercise 3 on pages 142-143 in Math 4 textbook

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Solve exercise 3 on pages 142-143 in Math 4 textbook, part of the Concentration Practice, Write Correct (C) or Incorrect (I)

Guide to solving exercise 3 on pages 142-143 in Math 4 textbook

Solution method:
- The area of a rhombus is half the product of the lengths of its diagonals.
- The area of a rectangle is the product of its length and width.

Answer:
The area of a rhombus is:
5 x 2 : 2 = 5 (cm²)
The area of a rectangle is:
5 x 2 = 10 (cm²)
We have: 10 : 5 = 2
So, the area of the rectangle is 2 times the area of the rhombus, or the area of the rhombus is half the area of the rectangle.
a) Write S in the blank box
b) Write D in the blank box.

Here is the solution for exercise 3 on pages 142, 143 of the Math 4 textbook practice section. Additionally, this section contains two more exercises: Solve exercise 1 on pages 142, 143 of Math 4 and Solve exercise 2 on pages 142, 143 of Math 4. Let's explore the solution to Math 4 page 142, 143 to excel in the subject of Math 4.

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Frequently Asked Questions

What is the method for calculating the area of a rhombus?

The area of a rhombus is calculated by taking half the product of its diagonals. This formula allows students to easily determine the area by simply measuring the lengths of the diagonals and applying the formula effectively.

How do you find the area of a rectangle using its dimensions?

To find the area of a rectangle, you multiply its length by its width. This straightforward calculation yields the total area, which is essential for solving various mathematical problems and exercises in the Math 4 textbook.

Is the area of a rectangle always twice that of a rhombus?

No, the area of a rectangle is not always twice that of a rhombus. In the specific example given, the area of the rectangle is twice the area of the rhombus, but this relationship depends on the dimensions used for each shape.

What should be written in the blank boxes for exercise 3?

For exercise 3, you should write 'S' in the first blank box and 'D' in the second blank box. This indicates the correct identification of shapes based on the calculated areas and their relationships as outlined in the Math 4 textbook.