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The document for solving Math Grade 5, pages 169, 170, concentrated practice is an excellent math resource, providing specific and detailed solution methods for exercises 1, 2, 3. Students can refer to grasp the solution techniques and enhance their knowledge related to rectangles such as perimeter, area, etc.
Solving Math Grade 5, pages 169, 170, Concentrated Practice
Exercise 1 - Math Grade 5 page 169 SGK Problem: A rectangular garden has a perimeter of 160m, width 30m. Vegetables are grown on that garden, on average every 10m^2 yields 15kg of vegetables. How many kilograms of vegetables are harvested on the entire garden?
Solution Method:
Calculate half the perimeter of the garden = perimeter ÷ 2.
- Calculate the length = half perimeter - width.
- Calculate the area = length × width.
Problem 2 - Math Exercise for 5th Grade Concentration Page 169
Solution Approach:
From the formula for calculating the lateral surface area of a rectangular prism:
Lateral surface area of the rectangular prism = perimeter of the base × height.
Therefore, the height = lateral surface area : perimeter of the base.
Solution Approach:
- Divide the land into a triangle and a rectangle.
- Calculate the actual lengths of the land edges. Convert the length measurements to meters.
