Answer:
443.28
Step-by-step explanation:
Subtract 42.24 from 570.3 three times.
33.08 m
angle of ∆ = 131.6 - 90 = 41.6
=> x² = 8²+3²-2(8)(3)cos 41.6°
= 64+9-48(0.75)
= 73 - 36
= 37
x = √37 = 6.08 m
perimeter = (3×8)+3+6.08 = 33.08 m
, you can write it in terms of its diameter like this: 