A supplmentary angle = 180°
∠BDE and ∠BDF are vertical angles, and so are congruent.
∠BDF = 125°, because ∠BDF ≅ ∠BDE.
∠CDA ≅ ∠EDF
∠CDA = 90°
<span>line BJ </span> is angle bisector of ∠CDA. ∠CDB is 1/2 of ∠CDA
∠CDA = 90°
∠CDB = 90/2
∠CDB = 45°
∠GDF is a vertical angle of ∠CDB, and it's measurement will be the same as ∠CDB.
∠GDF ≅ ∠CDB
∠CDB = 45°
∠GDF = 45°
∠GDF = 45° should be your answer
hope this helps
The Answer to your problem is:
0.66875
Answer:
B
Step-by-step explanation:
Given
V = 
Substitute the given values for B and h into the formula
V = 
= 
= 140 in³
Answer:
x1 = 1 x2= 1/2
Step-by-step explanation:
DELTA= b^2-4*a*c
DELTA=(-6)^2-4*4*2= 4 >0 ==> 2 solutions
x1 = (-b+sqrtDELTA)/2*a = (6+2)/2*4 = 1
x2 = (-b-sqrtDELTA)/2*a = (6-2)/2*4 = 1/2
