5.ทรงกระบอก (Cylinder) คือ ทรงสามมิ

5. the cylinder (Cylinder) is any of three dimensional shape with a circular base that is equal in all respects to the face cut and is in plane parallel. When cutting a three-dimensional plane that is parallel to the base and will be welded, cut a circle that is equal in all respects to the base. Surface area = h x 2pr side (when h is high, straight muzzle RADIUS) Surface area = total surface area above + two cylinder's base area. Volume = pr 2x h6. Cone (cone) is a three-dimensional shape that a circle base. There are no spikes on the same base and attached to a path between vertex and any point. On the edge of the base as part of a straight line. Surface area = side prl When l = slant height R = rat With its muzzle Phiokruai area = prl x pr2 Volume = pr2h7. the area of rectangle = length x width. 8. the fourth theme areas like Li มจัตุรัส d = side x side. 9. the area of parallelogram = base x height. 10. wet pastry rectangle space x = mortar product of diagonals. 11. the area of trapezoid = sum x x parallel-side high. 12. any rectangle area = x x diagonal length.The sum of the length of the branch line is perpendicular to the diagonal. 13. the area of a triangle = x base x height. As well as fragrant khrai 1. vitamin c to ward off mosquitoes and other insects. Citronella oils (Citronella oil)That is the essential oils extracted from the citronella insect can be (1) cream containing Citronella oil from the. Concentration 5%, 1.25 and 2.5 are effective in preventing mosquito bites when tested against Anopheles. With the full protection period 2 hrs and 10% concentrations, there will be a period of 4 hours or more protective cream recipes that contain a mixture of oil, Citronella oil, 5%-2.5% vanillin and 0.5% will be effective in preventing mosquito bites as well. With a longer protection period of 6 hours (2, 3), and when tested against mosquitoes.

5.Cylinder (Cylinder) is a three-dimensional shape, with any base is a circle that rate exactly with shear and in plane parallel to each other. When he cut three dimensional plane parallel to this base.
= 2pr side surface area x H (when h is high R is radius muzzle)
the entire surface area = surface area beside the base areas both of cylindrical
. Volume = PR 2x H
6.Cone (cone) is a three-dimensional shape any with base circle. Have pointed out on the ระแน around with the same base and the line between vertices, and any point on the edge of the base is a line segment
surface area. Above = PRL when l = high tilt
.R = bright have muzzle
surface area rich PRL x PR2
v = pr2h
7 rectangular area = width x long
8. Area at the square. M = the square x the
9 area parallelogram = base high x
10.The area X rhombus = product of diagonals
11 area in parallel x trapezoidal = sum
12 high x. A rectangular area. X = length of the diagonal x
sum of the length of the line perpendicular to the diagonal branches that
.13. The triangle area = x base high x


.) 1 Lavender realizes the mosquitoes and insects
lemongrass oil (Citronella oil)
, which is the essential oil extracted from citronella can use insect repellent. (1) cream with oil from the leaves, lavender, concentration, 1.25 2.5 5% and effective to prevent mosquito bites when tested with Anopheles
. The duration of protection for 2 hours and concentration. 10% be time protection has more than 4 hour cream with a mixture of galangal oil 5% oil Lavender 2.5% vanillin and 0.5% is effective in preventing mosquito bites. The duration of protection for more than 6 visitors (2 3) and, when tested with mosquitoes.