Question

Find the area and circumference of the circle when (a) the radius is 7 cm, and (b) diameter is

28 cm. (Take π =22/7)​

Answer 1

Answer:

Answer:the radius of circle is =7

Answer:the radius of circle is =7conference is equal to 2pie r pie = 22/7

Answer:the radius of circle is =7conference is equal to 2pie r pie = 22/7circumference =2×22/7×7

Answer:the radius of circle is =7conference is equal to 2pie r pie = 22/7circumference =2×22/7×7so circumference is 44

area = 153.94

b part in upper pic ok

area is 615.75

$\purple{hope \: it \: help \: u \ \: \: \: \: : purple \: u \: }$

Answer 2

Answer:

Area = 154 $cm^{2}$ , circumference = 44 $cm$

Step-by-step explanation:

$\pi$ =22/7

area:

Radius   = 7 cm

              =22/7*7*7

               = 22*1*7

               = 154 $cm^{2}$

circumference:

              = $2*\pi*r$

               = 2*22/7*7

               = 44 cm

 Thank you