Answer:
Θ ≈ 22.6°
Step-by-step explanation:
Using the cosine ratio in the right triangle
cosΘ = 
= 
= 
, thus
Θ = 
( ) ≈ 22.6° ( to the nearest tenth )
How many piles are there in total? then we will be able to answer the question
Answer:
64 units
Step-by-step explanation:
divide the shape into two shapes:
first one: 15+15+4+4=38
second shape:7+7+6+6=26
pweimwter for the whole shape: 38+26=64 units
Y=mx+b
-1=-2+b
b=-1+2
b=1
y=x+1 <----------------
