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Surface Area= Area of the 2 triangles + Area of the 3 rectangles
Lateral Area= Area of the 3 rectangles
Page 991
Question 2, page 992
Page 992
S= (28cm)(12cm) + 2 (48𝒄𝒎𝟐)S= 336 𝒄𝒎𝟐 + 9𝟔𝒄𝒎𝟐= 432𝒄𝒎𝟐
OR
S= 2 (8)(6) + 2(6)(12)+ 2 (8)(12) S= 𝟗𝟔 + 𝟏𝟒𝟒 + 𝟏𝟗𝟐= 432𝒄𝒎𝟐
Example 1 APage 993
Find the Surface Area
P = 10+24+26=60
B = 𝟏
𝟐(24)(10)= 120
S = (60)(20) + 2 (120)= 1200 + 240= 1440 𝒊𝒏𝟐
Example 1 BPage 993
Page 994
Example 2 A Page 995
ORSurface Area of a REGULAR PYRAMID
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Example 1 A, Page 1006
Example 1 B, Page 1006
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Example 3 A, Page 1008
Example 3 B, Page 1009
Example 4 A, Page 1010
Example 3Page 996
