Question

Exercise 6.1.20 Calculate the area A and locate the centroid (X, Yc) of the shaded region shown below. Assume a = 44 cm, b = 28 cm, and r = 19 cm. Ka-b- X A= cm2 Xc = cm Yc = cm

Answer 1

Solutions oc Total Area : Area oft margle a et Area of rectangle & Area of semiciale q 19cm 38cm AL A2 6 44cm |4geomoy A = Alt Azt AB 22 AI x79x38 - 836 cm Ao = 28 x 38 = 1069 cme Az = aliage 5670 cm 2 A + AH Azt Az = 836 of 1069 4567 am 2 A = 2967 en Nowo, xes A 24 of Azhlet Ang AltARTAS 836* go qq 3 88 3 :29-33 * = 24 도 3 28 Mes qq of -58 2 47 ng = 99f est 82 = 99 of 28 of 9x19 3R Eir1.58 en 836 X 29.33 f 10697 58 of 567 8151.58 8467 = 69.80 cm Hoon xe =

N, - A191t ht - H 1 Эх 98 Я: 2 г. 39 » 99 59 - 19 9. 89 0 theu Ye 836525.32 + 1639 of ft Tья 9 29 67 Ye = 21:15 am Homee , 4 नि CAR Xe 69, 80 см Ye - 21:15 Сум