Question

pleace answer these question​

Answer 1

Answer:

Radius=16mm

Radius=16mm

Perimeter of this figure=2r+(2.pie.r)/4

=2×16+(2×22/7×16)/4

=32+(22×16)/7×2

=32+176/7

=32+25.14

=57.14mm

Answer 2

Answer:

400/7 mn

Step-by-step explanation:

sector

radius= r = 16 mn

angle= x° = 90°

so it is a quadrant circle

it's length of the arc = l = 2πr/4

= 2×π×16/4

= 8π

l= 8π mm

perimeter of sector= l+2r

8π+ 2×16

8×22/7+32

= (176+224) /7

= 400/7mm

perimeter of sector= 400/7 mm