Answer:
45
Step-by-step explanation:
Basically since we know one circle is 360 degrees we know that those for triangles top angle add up to 360. Since they are the same we can do 360/4 = 90.
Then we do 90/2 to get half of that which is why the correct answer is 45 degrees.
:)
Split it into two equations:
x - 2 = 6
and
-x + 2 = 6
-----------------------------------------------
x - 2 = 6
Add 2 to both sides:
x = 8
-x + 2 = 6
Subtract 2 to both sides:
-x = 4
Multiply -1 to both sides:
x = -4
So x = 8 and x = -4.
Let the Width be x cm
Then the length which is 5cm more than width must be (x+5) cm
Using the formula for the area = length* width
x(x+5) =50
(Distribute x on the parenthesis )
(subtract 50 )
(Factor)

we get
(Not x=-10 because negative side length not possible)
Width = 5 cm
Length = 5+5= 10 cm
Perimeter = 2(Length + width)
So
Perimeter = 2(10+5)
Perimeter = 2*15=30 cm
-2(X+9)=8
-2X-18=8
-2X-18+18=8+18
-2X=26
-2X/-2=26/-2
X=-13
-2(X+9)=8
(-2(X+9))/-2=8/-2
X+9=-4
X+9-9=-4-9
X=-13
I'm not sure if this helps. This is what I get. Not sure about -5.
Answer:
Step-by-step explanation:
in a parallelogram diagonals bisect each other.
so mid points are same.
Let coordinates of D be (x,y)
mid point of AC=midpoint Of BD
(-2+5)/2=(x+3)/2
x+3=-3
x=-3-3=-6
x=-6
(3-3)/2=(2+y)/2
y+2=0
y=-2
so D is (-6,-2)