Respuesta :

valerieulbrich

Answer:

41. 165.8 cm², 42. 101 m², 43. 75π ft², 44. 147π cm²

Step-by-step explanation:

41. 18x12=216, 3.14(4)²=50.24

216 - 50.24 = 165.76

42. 14x9=126, 5x5=25

126 - 25 = 101

43. πr² = (π)10²- (π)5² = 75π

44. πr² = (π)14²- (π)7² = 147π