Chapter 10
Haley E
10.1 Areas of Parallelogram and Trapezoid.
formula for parallelogram-- A=bh
formula for trapezoid-- A=.5(b1+b2)h
10.2 Area of Circles
Formula= pi.r.2 ( 2 squared)
example~ 3.14(5)2=78.5 type in 3.14 then put r in parenthsis then square it then press enter
10.3 Three Dimensional Figures
Polyhedron- a solid that is enclosed by polygons.
Vertex- the end point of the rays that form an angle.
Faces- a polygon that is a side of the polyhedron.
Edges- a line segment where 2 faces of the polyhedron meet.
10.4 Surface Area of Prisms and Cylinders
Surface Area of a Prisms- S=2B+Ph B - area of the base. P= Area of the perimeter
Surface Area of a Cylinder- S=2B+Ch=2pir*2+2pirh
(C=Circumference)
10.5 Surface Area of Pyramids and Cones
Surface Area for Pyramid- S=B+.5Pl (P=base of perimeter l=slant height)
surface area for a cone-S=pi.r*2+pi.rl
10.6 volumes of prisms and cylinders.
volume of a cylinder- pi.r*2h
V=Bh
lwh
12(8)(2) don't press enter till entire equation is in calculator.
10.7 Volumes of cones and pyramids
Pyramid V=1/3Bh
1/3(30*2)(15) don't press enter till entire equation in calculator
Cone V+1/3pi.r*2h
1/3pi(6)*2(12)
144pi simplify
452.16