Answer:
Step-by-step explanation:
if the slopes are same then parallel.
if the product of slopes=-1 then perpendicular.
Answer: c2 - a2 = b2
Step-by-step explanation: to isolate b2 you have to subtract a2 from both sides to get c2 - a2 = b2
25*2=50
10*5=50
so 2 packets of envelopes and 5 packets of stamps
Given:
The vertices of a quadrilateral ABCD are A(0, 4), B(4, 1), C(1, -3), and D(-3, 0).
To find:
The perimeter of quadrilateral ABCD.
Solution:
Distance formula:
Using the distance formula, we get
Similarly,
And,
Now, the perimeter of the quadrilateral ABCD is:
Therefore, the perimeter of the quadrilateral ABCD is 20 units.