WHOEVER ANSWERS CORRECTLY, I WILL MARK BRAINLIEST!!

a)3.39cm

b)9.39cm

Step-by-step explanation:

a) formula for length of an arc=

θ/360*2πr

θ=66

π =3.14

r=3cm

66/360*(2*3.14*3)

66/360*18.84

0.18*18.84

3.39cm

b) perimeter of shape= length of an arc+2 radii

3.39+2(3)

3.39+6

9.39cm

let soccer = x and golf = y

part a

1st equation: x + y = 125

2nd equation: x = y +45

part b

replace x in the 1st equation with the 2nd one:

y + 45 + y = 125

simplify:

2y + 45 = 125

subtract 45 from each side:

2y = 80

divide both sides by 2:

y = 80/2

y = 40

she plays golf for 40 minutes.

part c

no because she plays soccer for 45 minutes longer than golf 40 +45 =   85 minutes, not 80 minutes.

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6