Answer:
The pattern is that they are multiplying by -3 every time. 81*-3 = -243
5cm is the answer your looking for
Answer:
Step-by-step explanation :
a) 75
b) 39
C) 182
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:

Step-by-step explanation:

• y2 → -1
• y1 → 5
• x1 → 4
• x2 → -3
