please help
20 points!!
please show work

Answer:
Step-by-step explanation:
area of triangle = ½(base)(height) = ½(4)(6) = 12 cm²
:::::
radius of circle = 10/2 = 5 cm
area of circle = πr² = 25π cm² ≅ 78.5 cm²
:::::
78.5 - 12 = 66.5 cm²