Answer:
An Acute triangle
Step-by-step explanation:
Answer:
no
Step-by-step explanation:
i cannot help you
That's false. If I am understanding correctly.
Answer:
X = 4
Step-by-step explanation:
That traingle is an isosceles triangle. You know this because the base angles, 45 and 45 are the same. Another characteristic of an iscosceles traingle is that the base sides ( in this case 4 and X ) are always the same
we are given to find
we know that
where
i is number of rows
j is number of column
Here , we get
i=2
and j=3
so,
means second row and third column
we can look at matrix and find element
we can see that
that element is -21
so,
...........Answer
