Answer:

Step-by-step explanation:
we are given triangle as
we know that
triangle PRS and triangle PQS are similar
so, the ratios of their sides must be equal
we get

now, we are given
RS=4
QS=6
we can plug it



now, we can solve for PS

Answer: 314.16 or 100 pie
Step-by-step explanation:
2(50)pie
Answer:
x = 50
m∠D = 150°
m∠F = 30°
Step-by-step explanation:
- supplementary angles are two angles whose sum is 180°
∠D + ∠F = 180°
3x + x - 20 = 180
3x + x = 180 + 20
4x = 200
x = 200/4
x = 50
D = 3*50 = 150
∠D = 150°
F = 50 - 20 = 30
∠F = 30°
7*(60+3)=7*60+7*3= 420+21=441
No
There is not a common factor