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Solving 4th-grade math problems on pages 12 and 13 of VBT Volume 2, Exercise 94 is a valuable math learning resource, providing detailed solutions for exercises 1, 2, 3 tailored to the learning content of 4th-grade students. Through this, students can easily complete exercises accurately, grasp the lesson content.
Solving 4th-grade math problems on pages 12 and 13 of VBT Volume 2, Exercise 94
1. Solving Exercise 1 - Math workbook for 4th grade Volume 2 page 12
Problem Statement:
Mark (x) in the blank box below the figure with an area less than 20cm2:
Figures with an area less than 20cm2:
Solution Method:
Calculate the area of the shapes and compare the results with 20cm2.
The area of a parallelogram equals the length of the base multiplied by the height (using the same unit of measurement).
S = a x h
(S represents the area, a represents the length of the base, h represents the height of the parallelogram).
Answer
The area of parallelogram 1 is:
3 x 8 = 24 (cm2)
The area of parallelogram 2 is:
3 x 7 = 21 (cm2)
The area of parallelogram 3 is:
4 x 4 = 16 (cm2)
Therefore, the parallelogram with an area less than 20cm2 is parallelogram 3.
2. Solving Exercise 2 - Math workbook for 4th grade Volume 2 page 12
Problem Statement:
Fill in the blanks with appropriate measurements
Parallelogram:
1. Base length: 9cm, height: 12 cm, area: ...
2. Base length: 15dm, height: 12 dm, area: ...
3. Base length: 27m, height: 14m, area: ...
Solution Method
- Calculate the areas of the shapes and compare the results with 20cm2 .
- The area of a parallelogram equals the length of the base multiplied by the height (using the same unit of measurement).
S = a x h
(S represents the area, a represents the length of the base, h represents the height of the parallelogram).
Answer
1. Area: 108cm2
2. Area: 180dm2
3. Area: 378m2
3. Solve problem 3 - Math workbook for 4th grade Volume 2 page 13
Problem Statement:
A parallelogram piece of cardboard has a base length of 14cm and a height of 7cm. Calculate the area of that piece of cardboard.
Solution Method:
The area of a parallelogram is the product of its base length and height (using the same unit of measurement).
Answer
The area of the parallelogram-shaped piece of cardboard is:
14 x 7 = 98 (cm2)
Answer: 98cm2
You are currently viewing the guide for solving Exercise 94 on pages 12 and 13 of VBT Volume 2, Finding the Area of a Parallelogram. You can review the guide for solving exercises on pages 11 and 12 of VBT Volume 2, Parallelogram, or preview the guide for solving exercises on pages 12 and 13 of VBT Volume 2, Practice, to better understand the lesson.
Wishing you success in learning mathematics.
