Mathematics Standard 7 Term Il>Chapter 2 - Measurements>Try these>Q (ii)

EASY

7th Tamil Nadu Board

IMPORTANT

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The area of the circle is $k c m^{2}$ and the diameter is $28 cm$ . Find the value of $k$ .

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Important Questions on Measurements

MEDIUM

7th Tamil Nadu Board

IMPORTANT

Mathematics Standard 7 Term Il>Chapter 2 - Measurements>Exercise 2.2>Q 1

If the area of the dining table whose diameter is

105 cm

is

k {cm}^{2}

, find the value of

k

.

MEDIUM

7th Tamil Nadu Board

IMPORTANT

Mathematics Standard 7 Term Il>Chapter 2 - Measurements>Exercise 2.2>Q 2

If the area of the shotput circle whose radius is

2.135 m

is

k m^{2}

, find the value of

k

.

MEDIUM

7th Tamil Nadu Board

IMPORTANT

Mathematics Standard 7 Term Il>Chapter 2 - Measurements>Exercise 2.2>Q 3

A sprinkler placed at the centre of a flower garden sprays water covering a circular area. If the area watered is

1386 {cm}^{2}

, find its radius and diameter.

MEDIUM

7th Tamil Nadu Board

IMPORTANT

Mathematics Standard 7 Term Il>Chapter 2 - Measurements>Exercise 2.2>Q 4

The circumference of a circular park is

352 m

. If the area of the park is

k m^{2}

, find the value of

k

MEDIUM

7th Tamil Nadu Board

IMPORTANT

Mathematics Standard 7 Term Il>Chapter 2 - Measurements>Exercise 2.2>Q 5

In a grassland, a sheep is tethered by a rope of length $4.9 m$ . If the maximum area that the sheep can graze is $k m^{2}$ , find the value of $k$

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HARD

7th Tamil Nadu Board

IMPORTANT

Mathematics Standard 7 Term Il>Chapter 2 - Measurements>Exercise 2.2>Q 6

Find the length of the rope by which a bull must be tethered in order that it may be able to graze an area of

2464 m^{2}

.

(Note: Find the answer in $m$ and enter only the numerical part in the blank)

MEDIUM

7th Tamil Nadu Board

IMPORTANT

Mathematics Standard 7 Term Il>Chapter 2 - Measurements>Exercise 2.2>Q 7

Lalitha wants to buy a round carpet of radius is

63 cm

for her hall. If the area covered by the carpet is

A {cm}^{2}

then find the value of

A

.

HARD

7th Tamil Nadu Board

IMPORTANT

Mathematics Standard 7 Term Il>Chapter 2 - Measurements>Exercise 2.2>Q 8

Thenmozhi wants to level her circular flower garden whose diameter is

49 m

at the rate of

₹ 150

per

m^{2}

. If the cost of levelling is

₹ k

, find

k

.