当前位置:首页 >> 数学 >>

Chapter7C1.surface area


Chapter7C.1. Surface area Michael Liu Grade 9 Definition:surface area ?A plane face is one which is flat. ?This means that the surface area is the same as the area of the net required to make the Definition:surface area ?What does it mean to you? ?The surface area of a threedimensional solid with plane faces is the sum of the areas of the faces. Example : Triangular prism ? The surface area of the following triangular prism. B'' B' B' A'' B C' The SA is same as the area of : Area of side 1 Area of side 2 Area of side 3 Vocabulary A rectangular prism always has 6 faces, or sides. ____ Top Back Side 2 Front Bottom Side 1 Height (H) Width (W) Length (L) 5 More About Faces wait.. 1 Vocabulary To help us see all six faces of a rectangular prism, mathematicians sometimes unfold the rectangular prism to see a drawing called a net. Top Side Side Front Side Top Front Bottom You can easily see all three pairs of faces in a net. Internet applet: 7 Back Net of a cube wait.. 1 Practice – Independent Example So, how do we find the surface area of this rectangular prism? Let’s try an example… Front Back Side 1 Side 2 Top Bottom Take a couple minutes to see how many faces you can find the area of. If you can, also try to find the total surface area. 3 cm 4 cm 2 cm 8 Scaffolding Practice – Guided Example Surface area of the rectangular prism Side 2 Top Side Front Side Remember: Bottom Back Back Front = 4 cm x 3 cm = 12 cm2 = 12 cm2 = 6 cm2 = 6 cm2 = 8

相关文章:
Chapter 9 Approach
Chapter 9 Approach_计算机硬件及网络_IT/计算机_...Runway Surface Conditions 1. PIL: Approach, Fast...Fastjet 812, contact radar on 124.7 Visual Approach...
Chapter 15 & 16
Chapter 15 & 16_调查/报告_表格/模板_实用文档。...the area drained by a river system 7. How ...groundwater to Earth’s surface is called a(n)...
chapter7_6e数组
Test Bank for Problem Solving with C++: The Object of Programming, 6/e Chapter 7 Arrays TRUE/FALSE 1. The indexed variables (members) of an array ...
Managerial Economics Micheal chapter7 answer
Managerial Economics Micheal chapter7 answer_计算机硬件及网络_IT/计算机_专业资料...On the surface the industry analysts’ suggestion would represent a merger ...
chapter 19 - respirato...
Chapter 19 - Respiratory System_调查/报告_表格/...H. Bronchial Tree (p. 456; Fig. 16.7) 1....more surface area, shorter distance, greater solubility...
国际会计chapter7
国际会计chapter7_经管营销_专业资料。国际会计 Exercises for Chapter 7 一、...16. In the area of information technology, the main areas of differences ...
C习题(chapter1,chapter3)
用 putchar 輸出: #include"stdio.h" void main() { char c1,c2,c3,c4,...area); printf("圓球表面積為:%7.2f\n",surfacearea); printf("圓球體積...
E3-ESwitching chapter7
//www.chuangyw.com/提供资料 Exam Viewer - ESwitching Chapter 7 - CCNA ...allow WLAN clients to learn which networks are available in a given area?...
Chapter 7-Statistical Mechanics
CHAPTER 7 Statistical An... 暂无评价 34页 免费...Total energy density per unit area: u= ? ? u...The temperature of the surface of a blue star ...
ccna_enetwork_chapter_7_...
CCNA_ENetwork_Chapter_7_答案(中文版)-dengwenhui_互联网_IT/计算机_专业资料...00-1c-41-ab-c0-00 00-0c-85-cf-65-c0 00-0c-85-cf-65-c1 00-...
更多相关标签: