From pt 1 to pt 2 there is a three unit change, from pt 2 to pt 3 there is a 3 unit change, from 3 to 4 there is a 5 unit change, and from 4 to 1 there is a 3 unit change. Add those together 3+3+3+5= 14 units is perimeter
To find area: look at image. answer is 30 units
Answer: a) 
b) 1
c) 2
Step-by-step explanation:
(a) sin 17π/6
It is known that the value of sin x repeat after an interval of 
∴ 
[Since the value of sin x is positive in 2nd quadrant]
(b) tan 13π/4
It is known that the value of sin x repeat after an interval of 
∴ 
(c) sec 11π/3


Starting time=1:45
ending time =3:30
add to get=4:75
one hour=60 minutes
75-60=15
answer=5:15
Answer:
B. SSS
Step-by-step explanation:
The two triangles already have 2 congruent sides, and the only missing thing to see is that they both share the same side with one another. This automatically makes them congruent.
Answer: 15 kilometers per hour
Step-by-step explanation: