All the opposite angles are equal in a parallelogram:
so AB=DB shows it is an isosceles triangle:
so the two angles on the sides are congruent,
let x to be one of the angles:
2x+28=180
2x=152
x=76=∠A
∠A is opposite of ∠DCB so ∠DCB is 76° because of the parallelogram properties
Answer:
I believe the answer is C. -10 < x <2
Step-by-step explanation:
The lines mean that they are parallel
Answer:
12^11
Step-by-step explanation:
12x12x12x12x12x12x12x12x12x12x12
There are 11 12's multiplied together, that means 12 is the base and 11 is the power
12^11