Question

Help please i need it

Answer 1

Step-by-step explanation:

question 3:

circumference of circle =2pi r

=2×3.14×25

=2×78.5

=157

360º-38º

hence,

157 -?

=157×38/360

=16.57 cm

arc AB= 16.57 cm.

question 4:

perimeter of semicircle =pi r + 2 r

=3.14×6.1+12.2

=31.354 cm.

hope it is helpful.