Answer:
Area of triangle: 18
Area of semicircle: (9pi)/2
perimeter of triangle: 20.49
perimeter of semicircle: 3pi+6
perimeter of whole thing: 23.91/ 6+8.49+3pi
Step-by-step explanation:
triangle area: 1/2bh, 1/2*6*6=18
Area of circle: pir^2, 3^2*pi, 9pi, semicircle means half, 9pi/2
