MATHEMATICS A TEXTBOOK FOR CLASS 7>Chapter 11 - Perimeter and Area>TRY THESE>Q (b)

MEDIUM

7th Jammu and Kashmir Board

IMPORTANT

Earn 100

Which is the larger, perimeter of the smaller square or the circumference of the circle in the following diagram.

Important Questions on Perimeter and Area

EASY

7th Jammu and Kashmir Board

IMPORTANT

MATHEMATICS A TEXTBOOK FOR CLASS 7>Chapter 11 - Perimeter and Area>Exercise 11.3>Q 1

If the circumference of the circle with the radius

14 c m

is

k cm

, then find the value of

k .

(Take

π = \frac{22}{7}

)

EASY

7th Jammu and Kashmir Board

IMPORTANT

MATHEMATICS A TEXTBOOK FOR CLASS 7>Chapter 11 - Perimeter and Area>Exercise 11.3>Q 1

If the circumference of the circle with the radius

28 m m

is

k mm

, then find the value of

k .

(Take

π = \frac{22}{7}

)

EASY

7th Jammu and Kashmir Board

IMPORTANT

MATHEMATICS A TEXTBOOK FOR CLASS 7>Chapter 11 - Perimeter and Area>Exercise 11.3>Q 1

If the circumference of the circle with the radius

21 c m

is

k cm

, then find the value of

k .

(Take

π = \frac{22}{7}

)

EASY

7th Jammu and Kashmir Board

IMPORTANT

MATHEMATICS A TEXTBOOK FOR CLASS 7>Chapter 11 - Perimeter and Area>Exercise 11.3>Q 2

If the area of the circle with the radius

14 m m

is

k {mm}^{2}

, then find the value of

k .

(Take

π = \frac{22}{7}

)

EASY

7th Jammu and Kashmir Board

IMPORTANT

MATHEMATICS A TEXTBOOK FOR CLASS 7>Chapter 11 - Perimeter and Area>Exercise 11.3>Q 2

If the area of the circle with diameter

49 m

is

k m^{2}

, find the value of

k .

(Take

π = \frac{22}{7}

)

EASY

7th Jammu and Kashmir Board

IMPORTANT

MATHEMATICS A TEXTBOOK FOR CLASS 7>Chapter 11 - Perimeter and Area>Exercise 11.3>Q 2

If the area of the circle whose radius is $5 cm$ is $k {cm}^{2}$ , then find the value of $k$ (correct upto two decimal places). (Take $π = \frac{22}{7}$ )

HARD

7th Jammu and Kashmir Board

IMPORTANT

MATHEMATICS A TEXTBOOK FOR CLASS 7>Chapter 11 - Perimeter and Area>Exercise 11.3>Q 3

If the circumference of a circular sheet is

154 m

, find its radius. Also find the area of the sheet. (Take

π = \frac{22}{7}

)

MEDIUM

7th Jammu and Kashmir Board

IMPORTANT

MATHEMATICS A TEXTBOOK FOR CLASS 7>Chapter 11 - Perimeter and Area>Exercise 11.3>Q 4

A gardener wants to fence a circular garden of diameter

21 m .

Find the length of the rope he needs to purchase, if he makes

2

rounds of fence. Also find the costs of the rope, if it cost

₹ 4

per meter. (Take

π = \frac{22}{7}

)