math 10 geometry unit lesson 1 6.1 (1) volume review
TRANSCRIPT
Math 10 Geometry Unit Math 10 Geometry Unit
Lesson 1Lesson 1
6.1 (1)6.1 (1)
Volume ReviewVolume Review
Intro.Intro.
What did you have for breakfast?What did you have for breakfast?How was it packaged?How was it packaged?Why do you think it came in that Why do you think it came in that
shape?shape?Are there other ways to package it?Are there other ways to package it?What should you take into What should you take into
consideration when packaging consideration when packaging something?something?
Handout Handout
Formula sheet that can be used on Formula sheet that can be used on teststests
AreaArea
The amount of flat space and object The amount of flat space and object takes up.takes up.
Two-dimensionalTwo-dimensionalUnits squaredUnits squared
cmcm², m²², m²
AreaArea
SquareSquare TriangleTriangle TrapezoidTrapezoid a a
ll hh h h
ww b b b b
A = l x wA = l x w A = A = b x hb x h A = h(a + b)2 2
Area cont….Area cont….
circlecircle
rr
2rA
VolumeVolume
Is the amount of space an object Is the amount of space an object takes up.takes up.
Three-dimentionalThree-dimentionalUnits are in cubic measuresUnits are in cubic measures
cmcm³, m³³, m³
3 categories of objects in 3 categories of objects in regards to their volume:regards to their volume:
Prisms & CylindersPrisms & Cylinders Pyramids & ConesPyramids & Cones SpheresSpheres
A.A. Prisms and CylindersPrisms and CylindersRectangular prism Triangular Rectangular prism Triangular
prismprism
Trapezoidal prismTrapezoidal prism Circular prism Circular prism (cylinder)(cylinder)
Volume of Prisms Volume of Prisms
hAV base )(
B. Pyramids & ConesB. Pyramids & Cones
Come to a pointCome to a point
Rectangular PyramidRectangular Pyramid Triangular Triangular PyramidPyramid
B. Pyramids & Cones cont…B. Pyramids & Cones cont…
Circular pyramidCircular pyramid (cone)(cone)
Volume of pyramids and Volume of pyramids and conescones
hAV 3
1
C. SpheresC. Spheres
A round 3 dimensional objectA round 3 dimensional object
Volume of a SphereVolume of a Sphere
3
4 3rV
Surface AreaSurface Area
Prisms Prisms
PyramidsPyramids
Sphere Sphere
rhrSA 22 2
2rrsSA
24 rSA
ClassworkClasswork
Do Q. 1 pg. 260 with classDo Q. 1 pg. 260 with classDo Q. 2 – 5 pg. 260 – 261Do Q. 2 – 5 pg. 260 – 261
Quiz in 2 days tomorrow on area, Quiz in 2 days tomorrow on area, surface area, and volume.surface area, and volume.