In this page length of arc question9 we are going to see quiz on the
topic length of arc. First we are going to see solution of question 9.

** Length of arc = (θ/360) x 2Πr**

here θ - angle formed by two radius

r - radius

Now we are going to see solution of question 1 based on this formula.

**Question 1 :**

**Find the length of arc whose radius is 42 cm and central angle is 60**°

**Question 2 :**

**Find the length of arc whose radius is 21 cm and central angle is 120**°

**Question 3 :**

**Find the length of arc whose radius is 35 cm and central angle is 72**°

**Question 4 :**

**Find the length of arc whose radius is 10.5 cm and central angle is 36**°

**Question 5 :**

**Find the length of arc whose radius is 14 cm and central angle is 5**°

**Question 6 :**

**Find the length of arc whose radius is 28 cm and central angle is 90**°

**Question 7 :**

**Find the length of arc whose radius is 14 cm and central angle is 288**°

**Question 8 :**

**Find the length of arc whose radius is 10.5 cm and central angle is 45**°

**Question 9 :**

**Find the length of arc whose radius is 35 cm and central angle is 18**°

**Solution :**

Length of arc = (θ/360) x 2 Π r

Here central angle (θ) = 18° and radius (r) = 35 cm

= (18°/360) x 2 x (22/7) x 35

= (1/20) x 2 x 22 x 5

= (1/10) x 2 x 22 x 5

= (1/2) x 2 x 22

= 11 cm

**Therefore length of arc = 11 cm**

**Question 10 :**

**Find the length of arc whose radius is 35 cm and central angle is 30**°

These are the questions in the page length of arc worksheets.

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