8. An isosceles triangle has a base with a length of 10 feet and base angles that measure 72º each, Which expression below would correctly calculate the area of this isosceles trianglez
10 ft
72
(1) 52-sin(72)
72
(2) 52 -12n(72)
(3) 10-5-cos(66)
(4) 10-5-ten(124)