Answer: 1 ) 20.58 cm^3
2 ) $0.09
3 ) $ 0.41
Step-by-step explanation:
Answer:
262 square feet of the ramp will be painted red.
Step-by-step explanation:
The lateral surface is surface area of the sides of the ramp without including the top and bottom faces
The ramp shown has three surfaces
The 2 sides are triangles with length 20 and height 8.5
The back is a rectangle shape with length 12 and height 8.5
Step 1: Finding the Area of triangle
The area of the triangle = 
The area of the triangle = 
The area of the triangle =
The area of the triangle = 85 square feet
Area of 2 triangles =
= 170
Step 2: Finding the Area of Rectangle
Area of rectangle = 
so,
Area of back rectangle =
= 102 square feet
Step 3: Finding the total lateral surface area
Total Lateral Surface Area
= Area of triangle + Area of Rectangle
= 272 square feet
T<span>he area of a figure is the measure of the extent of a two dimensional figure which is usually measured as the square units of the dimensions of the figure.
For example, given a figure with dimensions, say k, the area of the figure is given by

.
</span>
<span>Given that o<span>ne
similar figure has an area that is nine times the area of another.
Since the two figures are similar, it means that there areas will be proportional as their dimensions will be proportional.
Let the dimensions of the smaller figure be k and the larger figure is p times the smaller figure. Then the area of the smaller figure is

and the area of the larger figure is

.
Now, given that the area of the larger figure is nine times the area of the smaller figure, this means that:

</span>
Therefore, the
larger figure must have dimensions that are 3 times the dimensions of the
smaller figure.</span>