Someone please help me with the surface area
2 answers:
Surface are just means that you need to find the area of every face, then add.
TO find the Area of the rectangle do 16*8 = 128
For the triangle the area formula is b*h*1/2 So do 7*8*1/2= 28
There are four sides total and two triangles and two rectangles so 28+28+128+128= 312
SO the surface area is 312 in cubed
To find the Surface Area of a Triangular based prism you need to use the following formula: SA= bXh÷2 X H (of the prism)
In the question you have shown, the height is 8in, the base is 7in, and the height of the prism is 16in
so SA= 7X8÷2X16
= 448in^2
Therefore the Surface Area is 448in^2. Hope that helped!!
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So,
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x= the missing angle.
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Subtract both sides by 135.
x= 45
The missing angle equals 45 degrees.
I hope this helps!
~kaikers
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A= 11/12 i hope this helped !!!