Question

Find the distance covered by a wheel of radius 1.4 metre if it takes to
250 revotution

Answer 1

Answer:

Step-by-step explanation:

Answer 2

$\bf Question$

Find the distance covered by a wheel of radius 1.4 m, if it makes 250 revolutions.

$\bf Solution$

We, have to find that distance covered by a wheel of radius 1.4 m, if it makes 250 revolutions.

For this, first of all we have to find distance covered in 1 revolutions.

$\sf \: Radius \: of \: the \: circle = 1.4$

$\sf \: We \: can \: write \: 1.4 \: = \dfrac{14}{10}$

$\bf \: Formula \: used$

$\boxed{ \sf \: Circumference \: of \: circle \: = 2\pi r}$

$\sf \: Here, we \: use \: value \: of \: \pi \: = \dfrac{22}{7}$

$\sf \implies2\pi r \: = 2 \times \dfrac{22}{7} \times \dfrac{14}{10}$

$\sf \implies 2 \times \dfrac{22}{7} \times \dfrac{14}{10}$

$\sf \implies \cancel{2} \times \dfrac{22}{7} \times \dfrac{14}{ \cancel{10}}$

$\sf \: Cancel \: on \: 2$

$\sf \: 2 \times 5=10$

$\sf \implies \cancel{2} \times \dfrac{22} {\cancel{7}} \times \dfrac{ \cancel{14}} { \cancel{10}}$

$\sf \: Cancel \: on \: 7$

$\sf \: 7 \times 2 = 14$

$\sf \implies \dfrac{22 \times 2}{5} = \dfrac{44}{5}$

$\sf \implies \: \dfrac{44}{5} = 8.8$

So, In one revolution wheel cover 8.8 m

we have to find wheel cover distance in 250 revolution = 8.8 × 250 = 2,200 m.

Required Answer :

Distance covered by wheel in 250 revolutions = 2,200m

More informatioN :-

⌗Circumference of a circle = 2πr

⌗Area of a circle = π r²

⌗Arc length of sector of circle with radius r and angle θ is (θ/360) x 2πr

⌗The area of sector of a circle with radius ‘r’ and θ angle = ( θ/360) x π r²

⌗Area of segment of a circle = Area of the sector - Area of the triangle.

2. Find the area between two concentric circles of radii 10 cm and 4 cm. (Take p = 3.14)