Buzz
To master lesson 27 in the textbook, Connecting Knowledge Grade 4, and to practice math-solving skills, let's solve Grade 4 math exercises on pages 91, 92, 93 in KNTT textbook: Perpendicular lines and do homework exercises 1, 2, 3... together.
Refer to other good Grade 4 math resources:
- Solving Grade 4 math, Connecting Knowledge series
- Solving Grade 4 math exercises on pages 50, 51, 52, 53 in Kite textbook - Exercise 21: Perpendicular lines. Drawing two perpendicular lines
- Solving Grade 4 math exercises on page 71 in CTST textbook - Exercise 31: Perpendicular lines
Solving Grade 4 math exercises on pages 91, 92, 93 in Connecting Knowledge Series textbook
Exercise 27: Perpendicular Lines
Grade 4 Math Volume 1 SGK, KNTT book: Activity on page 91
Solution to Exercise 1 on page 91 Grade 4 Math Volume 1 Connecting Knowledge Series book
Problem: Use an L-square to check if two lines are perpendicular to each other or not?
Solution:
Solution to Exercise 2 on page 91 Grade 4 Math Volume 1 Connecting Knowledge Series book
Problem: Use an L-square to check for right angles, then list each pair of perpendicular lines.
Solution:
Solution to Exercise 3 on page 91 Grade 4 Math Volume 1 Connecting Knowledge Series book
Problem: Mai just drew the picture below. Observe and find images of two perpendicular lines in that picture.
Solution:
Grade 4 Math Volume 1 SGK, KNTT book: Activity on page 91
Solution to Exercise 1 on page 92 Grade 4 Math Volume 1 Connecting Knowledge Series book
Problem: Find some images of two perpendicular lines around you.
Solution:
Solution to Exercise 2 on page 92 Grade 4 Math Volume 1 Connecting Knowledge Series book
Problem: Given quadrilateral ABCD with angles A and D being right angles.
a) Name each pair of perpendicular sides.
b) Name each pair of intersecting sides that are not perpendicular.
Solution:
Solution to Exercise 3 on page 93 Grade 4 Math Volume 1 Connecting Knowledge Series book
Problem: There are three water pipes: M, N, P. Viet needs to connect these three pipes: pipe M is perpendicular to pipe N, pipe N is perpendicular to pipe P. Among options A, B, C, help Viet choose the suitable connection options.
Solution:
Solution to Exercise 4 on page 93 Grade 4 Math Volume 1 Connecting Knowledge Series book
Problem: Without using an L-square, how can we find a line perpendicular to line AB on a piece of paper?
Solution:
Solution to Exercise 5 on page 93 Grade 4 Math Volume 1 Connecting Knowledge Series book
Problem: Nam made a paper merry-go-round to store school supplies. Nam placed an eraser in the yellow compartment. Knowing the flower rod is perpendicular to the compartment containing the eraser, and the pencil sharpener compartment is perpendicular to the flower rod. Where can Nam place the pencil sharpener?
Solution:
Here is the solution to Grade 4 Math KNTT pages 91, 92, 93 volume 1 SGK, exercise 27: Perpendicular lines. You can also refer to Solving Grade 4 Math pages 94, 95, 96, 97 volume 1 KNTT book - Exercise 28: Practicing drawing perpendicular lines or review Solving Grade 4 Math pages 88, 89, 90 volume 1 KNTT book - Exercise 26: Concentrated practice to reinforce knowledge.
