Question

${\LARGE {\mathfrak{\underline {QUESTION}}}}$

$\sf The\: diameter \: of\: the\: circle\: is\: 28 \:cm. \:Then\: find \:the\: area\\\sf of\: the\: circle.$

Answer 1

${\bf {\huge {\pink{\underline {\dag{\red {QuEsTiOn}}}}}}}$

The diameter of the circle is 28 cm. Then find the area of the circle

${\bf {\huge {\pink{\underline {\dag{\red {AnSwEr}}}}}}}$

${\mathfrak {\large {\pink {\underline {\dag {\red {GiVeN}}}}}}}$

• Diameter of the circle =28 cm

${\mathfrak {\large {\pink {\underline {\dag {\red {SoLuTiOn}}}}}}}$

${\orange {\boxed {\boxed {\pmb {\blue {r=\dfrac{D}{2}}}}}}}$

$\sf \leadsto r=\dfrac{28}{2}$

$\sf \leadsto r=\dfrac{\cancel{28}}{\cancel{2}}$

$\leadsto{\orange {\boxed {\green {\tt {r=14\:cm}}}}}$

${\orange {\boxed {\boxed {\pmb {\blue {A=\pi {r}^{2}}}}}}}$

$\sf \leadsto A=\dfrac{22}{7}\times {\big(14\big)}^{2}$

$\sf\leadsto A=\dfrac{22}{7}\times 14\times 14$

$\sf\leadsto A=\dfrac{22}{7}\times {196}$

$\sf\leadsto A=22\times 28$

$\leadsto{\orange {\boxed {\green {\tt {A=616\:{cm}^{2}}}}}}$

${\bf {\huge {\pink{\underline {\dag{\red {HoPe\:It\:HeLpS\:yOu}}}}}}}$

Answer 2

Answer:

Given :

• The diameter of the circle is 28 cm .

Find Out :-

• Find the area of the circle?

Solution :-

Let's,find the radius :

➻ Radius = 28/2

➔ Radius = 14 cm

❍ Area of the circle : πr²

➻ Area of the circle = 22/7 × 14²

= 22/7 × 14 × 14

= 22/7 × 196

= 22 × 28

= 616 cm²

➠ Area of the circle = 616 cm²

∴ The area of the circle is 616 cm².