The net of an isosceles triangular prism is shown. What is the surface area, in square units, of the triangular prism? Three rectangles are shown, one below the other. The middle rectangle has a width of 6 units, and, along each width, is a triangle with a height of 4 units. The length of the lowermost rectangle is 8 units and its width is 5 units. 104 units2 132 units2 152 units2 168 units2
the same colored ones means that they're equal
let's first find the area of the purple one, what is the length and width?
6 and 6?
ummm relook one side is 6 yes, but the other side, relook
8
Yes, so what's the area of that rectangle
48
so now what's the area of the red rectangles
8x5?
yep so what's the area?
40
yes and the area of a triangle is base times height diivded by 2 What is the area of the blue triangle
4x4?
mmm the height is 4 yes, relook at the base, maybe look at the right blue triangle
the base is 6?
Yes so what's the area
4x6= 24
yes then divide that by half
Because area of a triangle is base time height then divided by 2
so 24 divided by 2?
yes
12
So now add them up 48+40+40+12+12
40+40+48+12+12= 52
so its C, thank youu
yw~
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