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Faman39
Group Title
What is the surface area of the composite figure?
176 mm2
192 mm2
208 mm2
304 mm2
 one year ago
 one year ago
Faman39 Group Title
What is the surface area of the composite figure? 176 mm2 192 mm2 208 mm2 304 mm2
 one year ago
 one year ago

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freewilly922 Group TitleBest ResponseYou've already chosen the best response.0
You have 4 triangles with Height = 3mm and base = 8 mm and 5 rectangles with base= 8mm and height=2mm Do you know the area of a triangle with respect to base and height? ditto with rectangles?
 one year ago

freewilly922 Group TitleBest ResponseYou've already chosen the best response.0
Sorry 4 rectangles
 one year ago

Faman39 Group TitleBest ResponseYou've already chosen the best response.1
Sorry but i still could not get this, how to solve ?
 one year ago

Faman39 Group TitleBest ResponseYou've already chosen the best response.1
@ghazi can you able to help me with it?
 one year ago

ghazi Group TitleBest ResponseYou've already chosen the best response.3
its easy you can do it, it is sum of surface areas
 one year ago

freewilly922 Group TitleBest ResponseYou've already chosen the best response.0
Triangle area is 0.5 B H so (3)(8) = 24 mm squared but there are 4 so (24)(4) mm squared for the roof. For rectangles area is BH so (8)(2) = 16 but we have 4 so (16)(4) the total surface area would be then the sum from the roof and the sides or (24)(4) + (16)(4) = (38)(4) = 152 mm squared
 one year ago

Faman39 Group TitleBest ResponseYou've already chosen the best response.1
Thank you so much guys :)
 one year ago

ghazi Group TitleBest ResponseYou've already chosen the best response.3
it's 4*(8*2)+(8*8)+4(2*1/2*4*3)
 one year ago

Faman39 Group TitleBest ResponseYou've already chosen the best response.1
Thanks alot guys! :)
 one year ago

freewilly922 Group TitleBest ResponseYou've already chosen the best response.0
forgot the halves in the triangle calculation. Triangle area is 0.5 B H so 0.5(3)(8) = 12 mm squared but there are 4 so (12)(4) mm squared for the roof. For rectangles area is BH so (8)(2) = 16 but we have 4 so (16)(4) the total surface area would be then the sum from the roof and the sides or (12)(4) + (16)(4) = (28)(4) = 112 mm squared plus 64 for the bottom to get 176 mm squared
 one year ago

Faman39 Group TitleBest ResponseYou've already chosen the best response.1
:) thanks @freewilly922 and @ghazi !! you guys are truly very awesome!!!!!!
 one year ago

ghazi Group TitleBest ResponseYou've already chosen the best response.3
you're welcome
 one year ago
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