Question

7. A circle is drawn with diameter 11 cm

a) Find the circumference

b) Find the area

plz answer....​

Answer 1

circle is draw of = 11 cm of diameter

To find out :-

a.)the circumference

b.)the area

Formulas

for circumference = 2πr

diameter = 2r

C=πd=π·11≈34.55752cm

ANSWER :- 34.56 cm

for area = A=πr2

A = 1/4 π d² = 1/4 •π• 11² ≈95.03318

Answer 2

Answer:

a) we know that circumference of circle

:-

$2\pi \times r$

we has 11 as diameter

so radius :-5.5

now,

$2 \times 22 \div 7 \times 5.5 \\ = 34.571$

b) Area

we know that area :-

$\pi \times r ^{2}$

that is

$22 \div 7 \times 5.5 \times 5.5 \\ = 95.071$