Sasi Math (Revised for 1024)

Scroll:Measurements >> Find the radius >> saq (4480)

Written Instructions:

For each Multiple Choice Question (MCQ), four options are given. One of them is the correct answer. Make your choice (1,2,3 or 4). Write your answers in the brackets provided..

For each Short Answer Question(SAQ) and Long Answer Question(LAQ), write your answers in the blanks provided.

Leave your answers in the simplest form or correct to two decimal places.

Find the radius of a circle whose circumferene is 132cm.

___cm

Answer:_______________

Find the radius of a circle whose circumferene is 176cm.

___cm

Answer:_______________

Find the radius of a circle whose circumferene is 17.6cm.

___cm

Answer:_______________

Find the radius of a circle whose circumferene is 117cm.

___cm

Answer:_______________

Find the radius of a circle whose circumferene is 88cm.

___cm

Answer:_______________

Find the radius of a circle whose circumferene is 26.4cm.

___cm

Answer:_______________

Find the radius of a circle whose circumferene is 119cm.

___cm

Answer:_______________

Find the radius of a circle whose circumferene is 264cm.

___cm

Answer:_______________

Find the radius of a circle whose circumferene is 22cm.

___cm

Answer:_______________

10)

Find the radius of a circle whose circumferene is 197cm.

___cm

Answer:_______________

Find the radius of a circle whose circumferene is 132cm.

Answer: 21.0cm

SOLUTION 1 :

Given,

c = 132cm.

Circumference of the circle = 2πr.

132 = 2 x $\frac{22}{7}$ x r

⇒ (132 x 7) ÷ (2 x 22)

⇒ $\frac{924}{44}$

r = 21.0cm.

Find the radius of a circle whose circumferene is 176cm.

Answer: 28cm

SOLUTION 1 :

Given,

c = 176cm.

Circumference of the circle = 2πr.

176 = 2 x $\frac{22}{7}$ x r

⇒ (176 x 7) ÷ (2 x 22)

⇒ $\frac{1232}{44}$

r = 28cm.

Find the radius of a circle whose circumferene is 17.6cm.

Answer: 2.8cm

SOLUTION 1 :

Given,

c = 17.6cm.

Circumference of the circle = 2πr.

17.6 = 2 x $\frac{22}{7}$ x r

⇒ (17.6 x 7) ÷ (2 x 22)

⇒ 123.2 ÷ 44

r = 2.8cm.

Find the radius of a circle whose circumferene is 117cm.

Answer: 18.6cm

SOLUTION 1 :

Given,

c = 117cm.

Circumference of the circle = 2πr.

117 = 2 x $\frac{22}{7}$ x r

⇒ (117 x 7) ÷ (2 x 22)

⇒ $\frac{819}{44}$

r = 18.6cm.

Find the radius of a circle whose circumferene is 88cm.

Answer: 14cm

SOLUTION 1 :

Given,

c = 88cm.

Circumference of the circle = 2πr.

88 = 2 x $\frac{22}{7}$ x r

⇒ (88 x 7) ÷ (2 x 22)

⇒ $\frac{616}{44}$

r = 14cm.

Find the radius of a circle whose circumferene is 26.4cm.

Answer: 4.2cm

SOLUTION 1 :

Given,

c = 26.4cm.

Circumference of the circle = 2πr.

26.4 = 2 x $\frac{22}{7}$ x r

⇒ (26.4 x 7) ÷ (2 x 22)

⇒ 184.8 ÷ 44

r = 4.2cm.

Find the radius of a circle whose circumferene is 119cm.

Answer: 18.9cm

SOLUTION 1 :

Given,

c = 119cm.

Circumference of the circle = 2πr.

119 = 2 x $\frac{22}{7}$ x r

⇒ (119 x 7) ÷ (2 x 22)

⇒ $\frac{833}{44}$

r = 18.9cm.

Find the radius of a circle whose circumferene is 264cm.

Answer: 42cm

SOLUTION 1 :

Given,

c = 264cm.

Circumference of the circle = 2πr.

264 = 2 x $\frac{22}{7}$ x r

⇒ (264 x 7) ÷ (2 x 22)

⇒ $\frac{1848}{44}$

r = 42cm.

Find the radius of a circle whose circumferene is 22cm.

Answer: 3.5cm

SOLUTION 1 :

Given,

c = 22cm.

Circumference of the circle = 2πr.

22 = 2 x $\frac{22}{7}$ x r

⇒ (22 x 7) ÷ (2 x 22)

⇒ 154 ÷ 44

r = 3.5cm.

10)

Find the radius of a circle whose circumferene is 197cm.

Answer: 31.3cm

SOLUTION 1 :

Given,

c = 197cm.

Circumference of the circle = 2πr.

197 = 2 x $\frac{22}{7}$ x r

⇒ (197 x 7) ÷ (2 x 22)

⇒ $\frac{1379}{44}$

r = 31.3cm.