Question

the letter 'S' formed by 2 similar 3/4 circles. Find the length of wire required form this letter (take 3.14).

Answer 1

Circumference of upper part of S
= 3/4 × 2pi × r
= 14.13

Similarly,
Circumference of upper part of S
= 3/4 × 2pi × r
= 14.13

Total wire required = 14.13 + 14.13
= 28.26 cm