This is solid mensuration. I need help. Asap. Thankyou so much

Open with Google Docs Problem Solving. 1. In a circle with a diameter of 10 meters, a regular five pointed star touching its circumference is inscribed. What is the area of the part not covered by the star? A. 60.42 B.40.58 C. 40.68 D. 50.47 2. Find the area of a hexagon with a square having an area of 72 sq. cm. inscribed in a circle which is inscribed in a hexagon. A. 124.71 sq. cm. C. 150.35 sq. cm. B. 150.26 sq. cm. D. 130.77 sq. cm. 3. Three identical circles are tangent to each other externally. If the area of the curvilinear triangle enclosed between the points of tangency of the 3 circles is 16.13 cm2, compute the radius of each circle. A. 10 cm B. 13 cm C. 9 cm D. 15cm 4. A semi - circle of radius 14 cm is bent to form a rectangle whose length is 1 cm more than its width. Find the area of the rectangle. A. 323.75 cm2 B. 322.32 cm2 C. 233.57 cm2 D. 233.75 cm2 5. The side of a regular pentagon is 25 cm. If the radius of its inscribed circle is 15 cm, find the area of the pentagon. A. 937.5 cm2 B. 784.6 cm2 C. 825.75 cm2 D. 857.65 cm2 6. The capacities of two hemispherical tanks are in the ratio 64:125. If 4.8 kg of paint is required to paint the outer surface of the smaller tank, then how many kilograms of paint would be needed to paint the outer surface of the larger tank? A. 8.5 kg B. 6.7 kg C. 7.5 kg D. 9.4 kg