Step-by-step explanation:

Answer:
45 degrees
Step-by-step explanation:
angle QRS is same as (2x + 3) because it is an isosceles triangle
so, 90 + (2x+3) + (2x+3) =180 degrees
2x+3 +2x+3=180-90
2x+2x +3+3=90
4x+6=90
4x=90-6
4x=84
x=84/4
x=21
substitute x=21 in (2x+3)
2*21+3=45
Answer:
The length of MN is
units.
Step-by-step explanation:
The given Quadrilateral KLMN has vertices at K(-4,-1), L(-1,-1) M(-2,-5) and N(-4,-4).
We use the distance formula to find the length of MN.

We plug in the values to get




The length of MN is
units.
Answer:
482.8 cm
Step-by-step explanation:
A=2(1+sqrt2)a^2=2·(1+squrt2)·10^2=482.84271
Answer: 2916
Step-by-step explanation: hope it helps