Question

Please answer this correctly

Answer 1

Answer:

perimeter of circle = 2πr

we have to find the quarter

so,

2πr/4

= πr/2

taking π = 3.14

by putting values

(3.14×1)/2

= 1.57 mm

we have to find the perimeter of whole figure so we have to consider radius on both sides too.

therefore,

total perimeter°

1.57+1+1

= 3.57 mm (answer)

Answer 2

$\huge\underline\mathrm{Question:-}$

• To find quarter circle's perimeter.

$\huge\underline\mathrm{Given:-}$

• radius of quarter circle is 1mm.

$\huge\underline\mathrm{Solution:-}$

★ Perimeter of circle will change according to quarter circle. So, It will become -

⟼ $\frac{\pi \times r}{2}$

★ Placing values according to conditions.

⟼ $\frac{3.14 \times 1}{2}$

⟼ $1.57mm$

★ Total perimeter will consider both sides radius. It will become -

⟼ $total \: perimeter = 1.57 + 1 + 1$

⟼ $3.57mm$

$\huge\underline\mathrm{Answer:-}$

• Total Perimeter is 3.57mm