Answer:
The answer 90 degrees.
Step-by-step explanation:
DE^2 = 1 + 16 = 17.
EF^2 = 16 + 1 = 17.
DF^2 = 9 + 25 = 34.
Since (DE)^2 + (EF)^2 = (DF)^2,
angle E is 90 degrees.
The rule of zero: x^0= 1
the answer is 1
X + x + 36 + x + x + 36 = 360
4x + 72 = 360
4x = 288
x = 72
so the angles would be
72° , 108°, 72° , 108°.
Answer:
B,D
Step-by-step explanation:
waiting for brainlist
3/5 = 12/20 plus 1/4 which = 5/20 = 17/20, 20/20-17/20= 3/20