Let
The origin of coordinates the tree
r1 = vector position of the child 1.
r2 = vector position of the child 2
Child 1:
r1 = (12i + 12j)
Child 2:
r2 = (-18i + 11j)
The scalar product will be given by:
r1.r2 = ((12) * (- 18)) + ((12) * (11)) = - 84
The scalar product of their net displacements from the tree is -84m ^ 2
Hey there! :D
None of the sides are equal. We can tell this by just looking at it. If the side BC was a straight side, it would be a right triangle, but it is not. It doesn't have any right angles.
It is a scalene triangle. It has no equal sides and no equal angles.
I hope this helps!
~kaikers
Answer:



Step-by-step explanation:
we have
step 1
Group terms that contain the same variable, and move the constant to the opposite side of the equation

step 2
Factor 5 left side

step 3
Complete the square



step 4
Rewrite as perfect squares

step 5



step 6

Answer:
The same
Step-by-step explanation:
length does not mean anything in terms of diameter