Question

If the perimeter of a semicircular protractor is 56 then the diameter is

Answer 1

✪AnSwEr

${\tt{\red{\underline{\large{Given}}}}}$

• Perimeter of a semicircular is 56

${\sf{\green{\underline{\large{To\:find}}}}}$

• The diameter

${\sf{\pink{\underline{\Large{Explanation}}}}}$

We know that

Area of circle is = πr²

perimeter of circle is =56

According to the question

perimeter of circle is =56

=>2πr=56

=>r = 56 × 7/44

=> r = 14 × 7/11

=>r = 98/11

Now D = 2r

D=2r

=>D= 2 × 98/11

=>D=196/11