Question

1.Find the area of the dining table whose diameter is 105 cm

Please tell me please I have exam​

Answer 1

QUESTION :

Find the area of the dining table whose diameter is 105 cm.

ANSWER :

We know that the dining table is in a circle shape,

so, we have to find the area of the circle whose diameter is given as 105 cm.

d = 105 cm

r = d/2 = 105/2 cm

AREA OF CIRCLE = πr^2

πr^2 = 22/7 x (105/2)^2

= 22/7 x 105/2 x 105/2

= 11/1 x 15/1 x 105/2

= 17,325/2 cm^2

= 8,662.5 cm^2

FINAL ANSWER : 8,662.5 cm^2

Answer 2

Step-by-step explanation:

$\mathtt{Radius \;of \;the \;circle = \frac{Diameter}{2}=\frac{105cm}{2} = 52.5cm}$

$\mathtt{Area\; of \;a \;circle = \pi r^2}$

$\mathtt{= \frac{22}{7}\times r\times r =\Big(\frac{22}{7}\times 52.5 \times 52.5\Big)cm^2 }$

$\mathtt{=8662.5 cm^2}$