Question

find the circumference of a circle with diameter 35cm. (use π =22/7)​

Answer 1

Answer:

110cm

Step-by-step explanation:

Circumference= πd

=22/7 x 35

=22x5

=110 cm

Answer 2

Answer

$\purple{\bigstar}$ Circumference of circle $\leadsto$ ${\boxed{\sf{\red{110~cm}}}}$

• Given

• Diameter of a circle = 35 cm

• To find

• Circumference of a circle

• Solution

• Firstly, from the diameter we will find the radius of the circle and then by using the formula to find circumference we will find the circumference.

$\purple{\bigstar}$ $\boxed{\underline{\sf{Radius = \dfrac{Diameter}{2}}}}$

⟶ 35/2

⟶ 17.5 cm

• Radius of the circle = 17.5 cm

$\purple{\bigstar}$ $\boxed{\underline{\sf{Circumference = 2\pi r}}}$

⟶ 2 × 22/7 × 17.5

⟶ 110 cm

• Circumference of circle = 110 cm.

_______________________________

Some formulae -

• Area of circle = πr²
• Volume of cylinder = πr²h
• Total surface area of cylinder = 2πrh + 2πr²
• Total surface area of cone = πrl + πr²h
• Curved surface area of cone = πrl
• Volume of cone = 1/3 πr²h