Answer:
10
Step-by-step explanation:
Mathematical Formula: 
Therefore: 
Which = 10
Answer:
Perimiter= 27
Step-by-step explanation:
It equals that, because in order to find the perimeter of something, you just add all of the sides together. I don't know how to do the area, but I'm sure you'll be able to find how on google. I hope this helped in some way
Answer:
a dilation and translation
Step-by-step explanation:
we know its a dilation because the lines of congruency are in the same area but the triangles are of different sizes
we know it's a translation because the triangles are in two different places instead of having something overlap
Answer:
300
Step-by-step explanation:
when rounding to the nearest 10,
132 is 130
68 is 70
42 is 40
and 78 is 80
add them all and it is 320
which then that could be rounded to 300.
Answer:
42°
Step-by-step explanation:
90°-48° and you get the answer for the missing angle
