Question

▄︻̷̿┻̿═━一 I CHALLENGE ALL THE GENIUS SOLVE THIS PROBLEM
HERE IS ANSWER FOR MATCHING
1 ANSWER 9cm
2 ANSWER 6 π
3 ANSWER 6√2cm
4 ANSWER 36π



​

Answer 1

1)Since the radius of the sector is 9 CM

so when the sector is rolled up

the edge acts as the joining point

and the radius becomes the slant height

so slant height is 9cm

2)circumference if a sector is

=x°/360* 2πr[where X is the angle of the sector ]

so the circumference is

= 120/360 * 2 π*9

= 1/3 * 2π * 9

= 6π

2πr= 6π

r= 3cm

3)slant height = 9 cm

so √(r² + h²) = 9

=>9 + h² = 81

=> h² = 81 - 9

=> h= √72

volume of the come = πr²h

= π*9* √72

= 9π*6√2

=36√2π cm³

4) tsa = πrl + πr²= π * 9 *9 + 9π

=81π + 9π

=90π