Respuesta :

siya90258

Step-by-step explanation:

Q1. diameter =90yd radius=45

circumference of circle=2×pi×radius

"" =2×3.14×45

=282.6 yd

Q2 diameter =18m radius=9

area of circle=pi×(radius)

""" =3.14×9²

""" =254.34m²