Answer:
Yes, parallelogram OABC is a rectangle.
Step-by-step explanation:
The vertices of a parallelogram are O(0,0), A(-4,1), B(-3,5) and C(1,4).
A parallelogram is a rectangle if its any two adjacent sides are perpendicular to each other.
product of slopes of two perpendicular lines is -1.
Formula for slope is
Using the formula we get
It means OA is perpendicular to AB.
Since two adjacent sides are perpendicular, therefore the given parallelogram OABC is a rectangle.
Is there more to questions. you can solve it with little info
Answer:
The distance between the cities is 81 miles
Step-by-step explanation:
* Lets explain how to find a distance between two points
- The distance between the two pints
and
is

* Lets solve the problem
∵ City A located at point (55 , 11)
∵ City B located at point (116 , 65)
- Let point
= (55 , 11) and point
= (116 , 65)
∴
and 
∴
and 
- By using the rule above
∴ 
∴ The distance between the cities is 81 miles
Answer:
C is correct as well as D.
Step-by-step explanation:
The rhombus also shares the common traits that the picture shows
Answer:
30 is 16.67% of 180
Step-by-step explanation: