CASE STUDY I :Chocolate is in the form of a quadrilateral with sides 6 cm
and 10 cm, 5 cm and 5 cm (as shown in the figure) is cut into two parts on
one of its diagonal by a lady. Part-I is given to her maid and part II is equally
divided among a driver and gardener. Depending upon the above situation answer the following (any 4) questions:
1. What is the perimeter of the PART II:
(a)20cm
(b)25cm
(c)24cm
(d)30cm
2. What is the area of the PART II:
(a)20cm2
(b)25cm2
(c)24cm2
(d)30cm2
3. What is the area of the PART I:
(a)12cm2
(b)18cm2
(c)14cm2
(d)25cm2
4. What is the perimeter of the chocolate piece shown in figure:
(a)20cm
(b)25cm
(c)24cm
(d)26cm
5. What is the area of chocolate piece shown in figure:
(a)36cm2
(b)18cm2
(c)34cm2
(d)25cm2
CASE STUDY II: Paul and Elder state that ‘Thinking is not driven by
answers but by questions', keeping this idea in mind, A Maths teacher
explains the concept of real numbers to 10th-grade students by making a
chart. The chart for the set of real numerals including all the types is given
below:
To develop interest and motivate students to become actively involved in the
concept he asked some questions: (Answer any 4)
i. The sum of a non-zero rational and irrational number is
a. rational
b. irrational
c. both of the above
d. none of the above
ii. The decimal expansion of an irrational number is:
a. terminating
b. non-terminating
c. non-terminating non-repeating
d. none of the above
iii. what is the p/q form of the number 4.32
a. 380/90
b. 380/80
c. 389/90
d. 379/90
iv. Which of the following is not irrational?
a. (3+√7)
b. (3-√7)
c. (3+√7)x(3-√7)
d. 3√7
v. The product of a irrational and an irrational number is
a. always a rational number
b. always an irrational number
c. 1
d. may be rational or irrational
Answers
Answer:
CASE STUDY I :Chocolate is in the form of a quadrilateral with sides 6 cm
and 10 cm, 5 cm and 5 cm (as shown in the figure) is cut into two parts on
one of its diagonal by a lady. Part-I is given to her maid and part II is equally
divided among a driver and gardener. Depending upon the above situation answer the following (any 4) questions:
1. What is the perimeter of the PART II:
(a)20cm
(b)25cm
(c)24cm
(d)30cm
2. What is the area of the PART II:
(a)20cm2
(b)25cm2
(c)24cm2
(d)30cm2
3. What is the area of the PART I:
(a)12cm2
(b)18cm2
(c)14cm2
(d)25cm2
4. What is the perimeter of the chocolate piece shown in figure:
(a)20cm
(b)25cm
(c)24cm
(d)26cm
5. What is the area of chocolate piece shown in figure:
(a)36cm2
(b)18cm2
(c)34cm2
(d)25cm2
CASE STUDY II: Paul and Elder state that ‘Thinking is not driven by
answers but by questions', keeping this idea in mind, A Maths teacher
explains the concept of real numbers to 10th-grade students by making a
chart. The chart for the set of real numerals including all the types is given
below:
To develop interest and motivate students to become actively involved in the
concept he asked some questions: (Answer any 4)
i. The sum of a non-zero rational and irrational number is
a. rational
b. irrational
c. both of the above
d. none of the above
ii. The decimal expansion of an irrational number is:
a. terminating
b. non-terminating
c. non-terminating non-repeating
d. none of the above
iii. what is the p/q form of the number 4.32
a. 380/90
b. 380/80
c. 389/90
d. 379/90
iv. Which of the following is not irrational?
a. (3+√7)
b. (3-√7)
c. (3+√7)x(3-√7)
d. 3√7
v. The product of a irrational and an irrational number is
a. always a rational number
b. always an irrational number
c. 1
d. may be rational or irrational.
Step-by-step explanation:
Which of the following is not irrational?
a. (3+√7)
b. (3-√7)
c. (3+√7)x(3-√7)
d. 3√7
v. The product of a irrational and an irrational number is
a. always a rational number
b. always an irrational number
c. 1
d. may be rational or irrational