Could someone me with this one as well. i swear this is my last question-

73.4

Step-by-step explanation:

The shaded area can be split into two shapes: a triangle and a sector.

The area of the triangle can be found using the SAS formula:

A = ½ ab sin C

A = ½ (5 cm) (5 cm) (sin 80°)

A = 12.31 cm²

The sector angle is 360° − 80° = 280°.  The area is:

A = (θ / 360) πr²

A = (280 / 360) π (5 cm)²

A = 61.09 cm²

So the total area is:

A = 12.31 cm² + 61.09 cm²

A = 73.4 cm²