Mathematics Question and Solution
Shaded area is;
Area sector with radius 10 units and angle acos(0.7) - Area triangle with height √(51) units and base 7 units - area sector with radius 3 units and angle 81.37307344° - area sector with radius 10 units and angle 17.2538531174° + area triangle with two side length 10 units, and angle 17.2538531174°
= (acos(0.7)*1))π÷360) - ½(√(51)*7) - (9π*81.37307344)/360 -(100π*17.2538531174)/360 + ½(100)sin17.2538531174
= 39.7699415092 - 24.9949994999 - 6.39102624298 - 15.0568272777 + 14.83028995
= 8.1573784386 square units.
