Lateral Faces:
Area of bottom face = 1*3 = 3 sq ft
Area of left-facing face = 2*3 = 6 sq ft
Area of slanted face = 3*2.2 = 6.6 sq ft
Total Lateral Surface Area = 3+6+6.6 = 15.6 sq ft
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Base Faces:
Each base is a triangle with base 2 and height 1
Area of one base = base*height/2 = 2*1/2 = 2/2 = 1
The total base area is 2*1 = 2 sq ft
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The total surface area is therefore 15.6+2 = 17.6
I added together the total lateral surface area (15.6) and the total base area (2)
Answer: 17.6 square feet
If it is #17 this:
the class sold 45 sandwiches and collected $150.75, all you need to do is divide.
150.75/45
= 3.35
$3.35 per sandwitch
<em><u>The question is the base of the triangle, so we use the formula : b²=c²–a²</u></em>
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Answer:
1/9
Step-by-step explanation: