W ARM -U P  Multiply.  1.39 x77  2.23 x 98  3.76 x 77  4.987 x 67.

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Presentation transcript:

W ARM -U P  Multiply.  1.39 x77  2.23 x 98  3.76 x 77  x 67

Pre-Algebra 11.5 S URFACE A REA : P YRAMIDS AND C ONES

PYRAMID  Surface Area of a Pyramid  SA = LW + 4(bh) 2  finding the area of the base, and the area of each lateral face!

CONE  Surface Area of a Cone  SA = πrl + πr 2  l is the slant height of the cone

F IND THE SURFACE AREA OF THE FIGURE AND NAME THE FIGURE  1. Name: _________________________________

F IND THE SURFACE AREA OF THE FIGURE AND NAME THE FIGURE  2. Name: _________________________________

P RACTICE ! 123

P RACTICE 56