Question

the circumference of a circular metal plate is 44cm.Calculate.
pls help​

Answer 1

Answer:

We have circumference of the circle = 44cm

(a) therefore, 2πr = 44 (where r is Radius)

2×(22/7)×r=44

22/7×r = 44/2

22r=22×7

r=(22×7)/22

r= 7cm (ANSWER)

(b) the area of the circle =

${\pi \: r}^{2}$

=>22/7×7×7

=>22×7

${154}^{2}$

Answer) a)7cm

$b){154}^{2}$

Answer 2

Answer:

the circumference of the circle=2πr=44cm

2×22/7×r= 44

22r/7=22

r/7=1

r=7cm

the radius of the plate=7cm

the area of the plate = πr²

22/7×7×7

22×7

=154cm²