Answer:
a. dbc = 66, ABC = 132
b. abd = 52, dbc= 52
Step-by-step explanation:
just remember that bisects means that the angles on either side of the middle line are equal. so for a, dbc = abd and ABC = 2x 66
for b, abd and dbc are equal, so both of them are just 104 divide by two
Answer:
x=138°
Step-by-step explanation:
x=70°+68°=138°
The outer angle is equal to the sum of the two non-adjacent angles
The easiest way is to just solve the equation.
4x - 4 = -4x + 60
4x + 4x = 4 + 60
8x = 64
x = 8
A slower way to do this is to plug each of the numbers into the equation to see which makes the equation is true.
So for A.
4(8 - 1) = -4(8) + 60
4(7) = -32 + 60
28 = 28
Fortunately, this is true, so A is the answer and you don't have to try the other options.
10. A(2, 3), B(2,9), C(6, 6), D(8,5), E(8, 11), F(12, 8)
olga nikolaevna [1]
I can’t see the picture so can you put it up
A should be right because a squared plus b squared equals c squared
