Answer:
x+3=15
-3 -3
x=12
Step-by-step explanation:
Answer:
x=126 degrees
Step-by-step explanation:
x+21=147 because they are opposite adjacent angles
x=126 degrees
Answer:
8.37
Step-by-step explanation:
Answer:
QD = 13
Step-by-step explanation:
According to the Centroid theorem of a triangle, the Centroid is ⅔ of the distance from every vertex angle to the midpoint of the side opposite to each of them.
By this we can deduce that:
QD = ⅔(QD + DK)
Substitute
QD = ⅔(QD + 6.5)
Multiply both sides by 3
3*QD = 2(QD + 6.5)
3QD = 2QD + 13
Subtract both sides by 2QD
3QD - 2QD = 13
QD = 13
Answer:
A
Step-by-step explanation: