Okay so first of all the triangle you multiply 10x8 which gives you 80 but since it’s a triangle you divide that by two which gives you 40, that’s the area for the triangle.Then for the circle you have to divide 8 by 2 which gives you 4 then you multiply 4 by 4 which is 16 then 16 by 3.14 and you get 50.24.Then add 50.24 with 40 and you get your answer being 90.24