Unit A Homework
Unit A Homework
Unit A Homework
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
<strong>Homework</strong><br />
Geometry & Probability<br />
<strong>Unit</strong> A<br />
Name<br />
Date<br />
Period<br />
<br />
Lesson 14- Surface Area of Composite Figures<br />
The circle, is A = πr 2 .<br />
Example<br />
To find the surface area, find the area of exposed surfaces.<br />
The lateral area of the prism is 50 + 10 + 50 + 10 = 120 m 2 .<br />
The area of the bottom of the prism is 10 × 2 = 20 m 2 .<br />
The surface area of the triangular prism is 2 + 2 + 28 + 20 = 52 m 2 .<br />
So, the surface area is 120 + 20 + 52 = 192 m 2 .<br />
Exercises<br />
Find the surface area of each figure. Show your work.<br />
1. _________________ 2. _________________ 3. _________________<br />
10 m<br />
6 m<br />
16 m<br />
4 m<br />
5 m<br />
4. _________________<br />
FLOWER BOX Find the surface area of the open-top flower box shown.
Change language