Answer:
For grid, Please see attachment area of rectangle.
Explanation:
We are given the area of rectangle is 1,125 square unit whose one side is 25 units.
As we know the formula of area of rectangle 
Let 25 units is width of rectangle
Area = 1,125
units
Dimension of rectangle 45 x 25.
Now we draw the grid graph of rectangle.
First we take a grid paper with 1 square unit area of each box. Now we draw line with 45 unit horizontal(Length) and 25 unit vertical (Width).
We make a closed figure with four line opposite side equal and parallel.
Inside box, total number of box must be 1,125 because area of 1 small box 1 square unit.
Total area of all box = 1,125 x 1 = 1,125 square units.
Answer:
The missing side is 
The missing angles are
and
Step-by-step explanation:
Given



The implication of this question is to solve for the missing side and the two missing angles
Represent
Angle A with 
Angle B with 
Angle C with 
Calculating B
This will be calculated using cosine formula as thus;

Substitute values for A, C and 




Take Square root of both sides

<em>(Approximated)</em>
Calculating 
This will be calculated using cosine formula as thus;

Substitute values for A, B and C



Collect Like Terms


Divide both sides by -144



<em>(Approximated)</em>
Calculating 
This will be calculated using cosine formula as thus;

Substitute values for A, B and C


Collect Like Terms


Divide both sides by -120



<em>(Approximated)</em>
Answer:
She needs to do at least 8 a day
Step-by-step explanation: