Find the area of a circle made of 1 mtr wire?1. 798 cm22. 799 cm23. 79

1.	Find the area of a circle made of 1 mtr wire?1. 798 cm22. 799 cm23. 796 cm24. 795.45 cm2
Answer» Correct Answer - Option 4 : 795.45 cm² Calculation: Circumference of circle = 1 m = 100 cm Formula used: Circumference of circle = 2πr Area of circle = πr2 Value of π = 22/7 Calculation: According to question, 2 × (22/7) × r = 100 cm ⇒ r = 700/44 cm ⇒ 175/11 cm Now, area of circle = π × (175/11) × (175/11) cm2 ⇒ (22/7) × (175/11) × (175/11) cm2 ⇒ 795.45 cm2 ∴ The area of circle is 795.45 cm2

Find the area of a circle made of 1 mtr wire?1. 798 cm22. 799 cm23. 796 cm24. 795.45 cm2

Answer» Correct Answer - Option 4 : 795.45 cm²

Calculation:

Circumference of circle = 1 m = 100 cm

Formula used:

Circumference of circle = 2πr

Area of circle = πr2

Value of π = 22/7

Calculation:

According to question,

2 × (22/7) × r = 100 cm

⇒ r = 700/44 cm

⇒ 175/11 cm

Now, area of circle = π × (175/11) × (175/11) cm2

⇒ (22/7) × (175/11) × (175/11) cm2

⇒ 795.45 cm2

∴ The area of circle is 795.45 cm2

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Find the area of a circle made of 1 mtr wire?1. 798 cm22. 799 cm23. 796 cm24. 795.45 cm2

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