Question

from a circular sheet of radius 5 cm a circle of radius 3 cm is removed find the srea of the remaining sheet​

Answer 1

Answer:

50.24cm^2

Step-by-step explanation:

AREA OF CIRCLE WITH RADIUS 5CM,

AREA=3.l4×(5)^2

=78.5 cm^2

AREA OF CIRCLE WITH RADIUS 3CM,

AREA=3.14×(3)^2

=28.26 cm^2

AREA OF REMAINING SHEET=78.5-28.26

=50.24cm^2

Answer 2

Question :

from a circular sheet of radius 5 cm a circle of radius 3 cm is removed find the area of the remaining sheet .

Answer :

$\sf\red{Given:}$

• radius of circular sheet is 5 cm

• radius of circle removed is 3 cm .

$\sf\red{To\:find:}$

• Area of remaining sheet ?

Explanation :

Area of remaining sheet is equal to Area of circle removed subtracted from the area of circular sheet .

Area of circular sheet = πr²

$\\ \longrightarrow\sf{\dfrac{22}{7}\times 5\times 5}$

$\\ \longrightarrow\sf{\dfrac{22}{7}\times 25}$

$\\ \longrightarrow\sf{\dfrac{550}{7}}$

$\\ \longrightarrow\sf{78.571}$

Area of circle removed = πr²

$\\ \longrightarrow\sf{\dfrac{22}{7}\times 3\times 3}$

$\\ \longrightarrow\sf{\dfrac{198}{7}}$

$\\ \longrightarrow\sf{28.285}$

Remaining Area = Area of circular sheet - area of circle removed

$\\ \longrightarrow\sf{78.571 - 28.285}$

$\\ \longrightarrow\sf{50.286}$

• Therefore the remaining area is 59.286 cm²