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Guidance for solving exercise 1 on page 99 of Mathematics Grade 5 Workbook
Problem statement:
Finding the circumference of a circle with radius r:
a) r = 9 m; b) r = 4.4 dm; c) r = 2.(1/2) cm
Solution method:
Students use the formula to calculate the circumference of a circle: C = r x 2 x pi (The circumference of a circle equals twice the radius of the circle multiplied by pi); they substitute the given values into the formula to find the corresponding results.
Answer:
The circumference of the circle is:
a) 9 x 2 x 3.14 = 56.52 (m)
b) 4.4 x 2 x 3.14 = 27.632 (dm)
c) r = 2.(1/2)cm = 2.5cm
2.5 x 2 x 3.14 = 15.7 (cm)
Answers: a) 56.52m;
b) 27.632 (dm);
c) 15.7 (cm).
The Solving Mathematics Grade 5 Workbook Exercise 1 on Page 99 section includes 4 exercises, Next is the solution to Exercise 1 on Page 99 of Mathematics Grade 5 Workbook. Mytour provides hints and detailed solution methods for Solving Exercise 2 Page 99 Mathematics Grade 5 Workbook, Solving Exercise 3 Page 99 Mathematics Grade 5 Workbook, and Solving Exercise 4 Page 99 Mathematics Grade 5 Workbook, students need to grasp the knowledge of this lesson.
