The radius and slant height of the right cone are multiplied

The radius and slant height of the right cone are multiplied by 1/5. Describe the effect on the surface area. a The surface are is multiplied by 1/2. b. The surface are is multiplied by 1/2. c. The surface area is multiplied by 16/3. d. The surface are is multiplied by 36/9. The radius and height of the cylinder are multiplied by 4. Describe the effect on the volume. a. The volume is multiplied by 4. b. The volume is multiplied by 8. c. The volume is multiplied by 16. d. The volume is multiplied by 64. 33. Lisa and Susan and driving to college together. They look at a map to find out how far they have to drive. on thhe map, Lisa measures the distance to be 2.5 inches. How many miles do they have to drive if the map scale is 1 in.: 55 mi? a.137.5 miles b. 22 miles c. 192, 5 miles d. 0.045 mile Find the area of the shaded segment of circle O. Round to the nearest tenth. a. 4.6 cm^2 b. 8 cm^2 C 8.8 cm^2 d. 12.6 cm^2

Solution

34. The area of shaded area is area of sector minus the are o f triangle

Area of sector = (90/360)*pi*r^2 = .25*4^2*pi

Area of triangle = 1/2 * 4 *4 8

So, shaded area = = .25*4^2*pi - 8 = 4.56 or 4.6cm^2

A is right