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Solving Math Grade 5 page 168, Reviewing Area and Volume Calculations for Some Shapes
Problem 1 in Math 5 page 168 Textbook
Statement:
A classroom has a rectangular shape with length 6m, width 4.5m, and height 4m. The goal is to whitewash the ceiling and four walls inside the room. Given that the area of the doors is 8.5m2, calculate the area that needs to be whitewashed.
Solution:
The ceiling area is: 6 x 4.5 = 27 (m2)
The surrounding area of the classroom is: (6 + 4.5) x 2 x 4 = 84 (m2)
The whitewashing area is: 27 + 84 - 8.5 = 102.5 (m2)
Answer: 102.5m2
Problem 2 in Math 5 page 168 Textbook
Statement:
An made a cubic-shaped box using cardboard with edges of 10cm.
a) Calculate the volume of the box.
b) If An covers all outer faces of the box with colored paper, how many square centimeters of colored paper does An need?
Solution:
a) The volume of the cubic box is: 10 x 10 x 10 = 1000 (cm3)
b) The colored paper area needed to cover all faces of the box is the total surface area of the cube:
The required colored paper area is:
10 x 10 x 6 = 600 (cm2)
Result: a) 1000cm3 ; b) 600cm2
Chapter 1 introduces us to measurement units, where the Decameter, Millimeter, Hectare are essential concepts. Check out tips for Solving Math Grade 5 Page 30 to excel in Grade 5 Mathematics.
Exercise 3 Math
Problem:
A rectangular water tank has dimensions inside the tank: length 2m, width 1.5m, and height 1m. When the tank is empty, water is poured into the tank through a pipe, filling 0.5m3 per hour. After how many hours will the tank be full?
Solution:
The volume of the water tank is: 2 x 1.5 x 1 = 3 (m3)
The time to fill the tank with water is: 3 : 0.5 = 6 (hours)
Answer: 6 hours.
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Above is the suggestion for Solving Math Grade 5 Page 168 with full details. Review the content of Math 5 Page 167 through the Solving Math Grade 5 Page 167 section and the Exercise on Page 169, 170 Math 5 through the Solving Math Grade 5 Page 169 section to master Math 5 better.
