sonal wants to make a disc to play she cuts a circle of diameter 10cm from a circular plastic sheet of diameter 14cm find the area of the disc are also find the area of the remaining plastic sheet (take pie=3.14)
Answers
Answered by
23
Hey Friend ✋✋✋
Radius of Disc = 5 cm
Radius of sheet = 7 cm
Area of disc = πr²
![= \frac{22}{7} \times 5 \times 5 \\ \\ = \frac{550}{7} \\ \\ = 78.5 = \frac{22}{7} \times 5 \times 5 \\ \\ = \frac{550}{7} \\ \\ = 78.5](https://tex.z-dn.net/?f=+%3D+%5Cfrac%7B22%7D%7B7%7D+%5Ctimes+5+%5Ctimes+5+%5C%5C+%5C%5C+%3D+%5Cfrac%7B550%7D%7B7%7D+%5C%5C+%5C%5C+%3D+78.5)
Remaining area of sheet = Area of Sheet - Area of disc
![= \frac{22}{7} \times 7 \times 7 - 78.5 \\ \\ = 154 - 78.5 \\ \\ = 75.5 = \frac{22}{7} \times 7 \times 7 - 78.5 \\ \\ = 154 - 78.5 \\ \\ = 75.5](https://tex.z-dn.net/?f=+%3D+%5Cfrac%7B22%7D%7B7%7D+%5Ctimes+7+%5Ctimes+7+-+78.5+%5C%5C+%5C%5C+%3D+154+-+78.5+%5C%5C+%5C%5C+%3D+75.5)
Hope it helps
Radius of Disc = 5 cm
Radius of sheet = 7 cm
Area of disc = πr²
Remaining area of sheet = Area of Sheet - Area of disc
Hope it helps
Answered by
1
adius of Disc = 5 cm
Radius of sheet = 7 cm
Area of disc = πr²
\begin{gathered} = \frac{22}{7} \times 5 \times 5 \\ \\ = \frac{550}{7} \\ \\ = 78.5\end{gathered}
=
7
22
×5×5
=
7
550
=78.5
Remaining area of sheet = Area of Sheet - Area of disc
\begin{gathered} = \frac{22}{7} \times 7 \times 7 - 78.5 \\ \\ = 154 - 78.5 \\ \\ = 75.5\end{gathered}
=
7
22
×7×7−78.5
=154−78.5
=75.5
Hope it helps
Similar questions