Download presentation
Presentation is loading. Please wait.
Published byBarbara Willis Modified over 6 years ago
1
Surface area and volume of composite figures Geometric probability
Tuesday, May 21 Surface area and volume of composite figures Geometric probability
2
Agenda Check your skills Homework check
Surface area and volume of composite figures Class Work Homework
3
Warm-Up Find the approximate surface area of a regular tetrahedron with edge length of 10 cm. Find the surface area of the sphere with a radius of 6 cm.
4
HW Check sqrt(3) pi 10 40pi pi sqrt(3) 22. x = 3
5
Composite figures Break the shape into figures you are familiar working with. Cones, Cylinders, Pyramids, Prisms, Spheres
6
Review of Formulas Prisms: LA = ph (perimeter of base*height) SA = LA + 2B (B = area of Base) Volume: Bh (B = area of Base) Cylinder: LA = 2pi*r*h SA = LA + 2B Volume: Bh
7
Pyramids: LA = (1/2)p. L (perimeter of base
Pyramids: LA = (1/2)p*L (perimeter of base* slant height) SA = LA + B (B = area of base) Cone: LA = pi*r*L (L = slant height) SA = LA + B (B= area of base
8
Sphere:
9
Geometric Probability
10
1. Find the SA LA of Cone + (1/2) SA of Sphere
11
2. Find SA (1/2) SA sphere + A of Circle
12
3. Volume: V 1 V 2
13
4. Volume V Cone + (1/2) V of sphere
14
5. Volume of space between two cylinders
V of Whole – V of Hole
15
1. A) What is the probability for inside the cone
16
2a) inside the cylinder (radius of cylinder is 4 cm, height is 10 cm)
17
CW Complete composite figures worksheet
Optional: Review sheet: answers are posted on my website:
18
Homework Check 80pi pi pi =
19
Homework Check SA=784pi V=3658.7pi SA=1960000pi V=457333333pi
R= r= r=12 10. r=6
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.