Find the surface area of this triangular prisim.And pls expliane how you got that answer aswell pls.:)
1 answer:
Answer:
Step-by-step explanation:
To get the area of the triangle sides, we use the formula
In words, this is <em>base · height ÷ 2</em>
After using this formula we find the surface area of the triangle sides is 54
Of course because there are two sides, we do 54 + 54 = 108
For the base of the prism, we do <em>12 · 18</em>, which equals 216
For the back, we do <em>9 · 18</em>, which equals 162
For the top, we do <em>15 · 18</em>, which equals 270
Now that we have the individual areas of all the faces, we add them together. Doing this, we get
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