I hope this helps you
at the 30-60-90 triangle has rules
30=>k
60=>k(square root of) 3
90=>2k
so in this triangle 60=> see 9
k(square root of) 3=9
k=9/(square root of) 3
2k=18/(square root of) 3
at the 45-45-90 triangle rules are
45=>2k
45=>2k
90=>[2k/(square root of 3)] (square root of) 2
x=[18/(square root of 3)].(square root of 2)
x=18(square root of 2)/square root of 3
X = -4
Y = 1
1 = -4 + 5
-4 - 5(1) = -9
Answer:
r=8
hope this helps
have a good day :)
Step-by-step explanation:
Y=180-70 (interior)
y=110
the answer is D
Answer:
4pi r
Step-by-step explanation:
