Answer:
Step-by-step explanation:
The window consists of a large square and 4 smaller triangles on the outside. The side length of this square is marked as 10, and therefore the area of this square is 
.
The area of a triangle is given by 
. Since the problem states that the overlapping squares are congruent, both legs of the triangle will be 
and intersect at a 
angle.
Thus, the sum of all four triangles is 
.
Therefore, the area of the window is:
Answer: Total number of pairs =872
Step-by-step explanation:
Since we have given that
Number of pairs of skates during the month of April =218
Number of pairs of skates during the month of May =3 × 218=654
As we know that total means altogether in which we perform the additive operation.
Total pairs of skates the skating rent during April and May = 218+654=872
∴ Total number of pairs =872
