Download - Surface area review and quiz 1
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Lesson 10.5, For use with pages 548-552
Write the area formulas for:• Square• Rectangle• Parallelogram• Triangle• Trapezoid• Circle
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ReviewReview
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When labeling any area, always use When labeling any area, always use _____ _._____ _.
Finding the area of all the faces of a Finding the area of all the faces of a polyhedron is called _______ _______.polyhedron is called _______ _______.
What is the definition of a polyhedron?What is the definition of a polyhedron?
_______
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When labeling any area, always use When labeling any area, always use _____ ________._____ ________.
Finding the area of all the faces of a Finding the area of all the faces of a polyhedron is called _______ _______.polyhedron is called _______ _______.
What is the definition of a polyhedron?What is the definition of a polyhedron?– is a solid that is enclosed by polygons. It has is a solid that is enclosed by polygons. It has
only flat surfaces.only flat surfaces.
units squared
surface area
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GUIDED PRACTICE for Examples 1, 2 and 3
Classify the solid. Then tell whether it is a polyhedron.
1. 2.
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GUIDED PRACTICE for Examples 1, 2 and 3
Classify the solid. Then tell whether it is a polyhedron.
1. 2.
triangular pyramid; polyhedron.
ANSWERCone; not a polyhedron.
ANSWER
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GUIDED PRACTICE
3.
for Examples 1, 2 and 3
Classify the solid. Then tell whether it is a polyhedron.
4.
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GUIDED PRACTICE
3.
octagonal prism; polyhedron.
ANSWER
for Examples 1, 2 and 3
Classify the solid. Then tell whether it is a polyhedron.
4.
ANSWER
sphere; not a polyhedron
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EXAMPLE 2 Counting Faces, Edges, and Vertices
SOLUTION
The solid is a pentagonal pyramid.
Classify the solid. Then count the number of faces, edges, and vertices.
Remember to include the base when counting faces.
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Daily Homework Quiz For use after Lesson 10.4
Identify the solid shown by the net.
Then find its surface area. Use 3.14 for π. Round to the nearest tenth.
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Daily Homework Quiz For use after Lesson 10.4
Identify the solid shown by the net.
Then find its surface area. Use 3.14 for π. Round to the nearest tenth.
cylinder; 29.8 m2ANSWER
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GUIDED PRACTICE
ANSWER
for Examples 1, 2, 3, and 4
The area of each triangle is 6 m · 8 m = 24 m2 The area of the large rectangle is 10m · 14m = 140m2
The area of the small rectangle is 6 m · 14 m = 84 m2
The area of the middle rectangle is 8 m · 14 m = 112 m2
The total area is 2 · 24m2 + 140m2 + 84m2 + 112m2= 384 m2
12
Identify the solid shown by the net.
Then find its surface area.
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HomeworkHomework
Page 552 #35-37 AND page 570 #14-17Page 552 #35-37 AND page 570 #14-17