Janice needs to re-shingle the roof of her house. One bundle of shingles costs $35.99 and covers 2.25 m2.
1 answer:
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Answer:
- 231 m²
- ₹ 4620
Step-by-step explanation:
<em>See the attached.</em>
The path goes along the perimeter of the park and parallel to the sides, something like the picture attached.
<u>The path is 1 m wide and the total length is:</u>
- 50*3 + 30*3 = 240 m
We need to consider the dark cells points in the picture with reflects the overlaps. They are counted twice and each is 1 m x 1 m.
<u>Subtracting the duplicated area 9 x 1 m² to get the total area of the path:</u>
- 240 - 9 = 231 m²
<u>The cost of cementing is:</u>
- 231*20 = 4620
Answer:
The coordinates of the points of the rectangle A'B'C'D' are;
The coordinates of the point A' = (-2, -1)
The coordinates of the point B' = (-2, 1)
The coordinates of the point C' = (2, 1)
The coordinates of the point D' = (2, -1)
Step-by-step explanation:
Placing the point P as the origin of the chart, we have;
The coordinates of the points are given as follows;
The coordinates of the point B = (-4, 2)
The coordinates of the point C = (4, 2)
The coordinates of the point A = (-4, -2)
The coordinates of the point D = (4, -2)
Given that the sides are parallel to the axis, we have;
The length of the segment AB = 2 - (-2) = 4
The length of the segment BC = 4 - (-4) = 8
The length of the segment CD = 2 - (-2) = 4
The length of the segment AD = 4 - (-4) = 8
Therefore, a dilation by 1/2 will give;
The length of the segment A'B' = AB/2 = 4/2 = 2
The length of the segment B'C' = BC/2 = 8/2 = 4
The length of the segment C'D' = CD/2 = 4/2 = 2
The length of the segment A'D' = AD/2 = 8/2 = 4
The coordinates of the point A' = The coordinates of the point A/2 = (-4, -2)/2 = (-2, -1)
The coordinates of the point A' = (-2, -1)
The coordinates of the point B' = The coordinates of the point B/2 = (-4, 2)/2 = (-2, 1)
The coordinates of the point B' = (-2, 1)
The coordinates of the point C' = The coordinates of the point C/2 = (4, 2)/2 = (2, 1)
The coordinates of the point C' = (2, 1)
The coordinates of the point D' = The coordinates of the point D/2 = (4, -2)/2 = (2, -1)
The coordinates of the point D' = (2, -1).
