Answer:
$420
Step-by-step explanation:
130x12=1560
165x12=1980
1980-1560=420
The answer is 51.3 degrees because you add 90+38.7=128.7
then you do 180-128.7 because this is a linear/ supplementary triangle which adds up to 180
and you get 51.3 degrees
Answer:

Step-by-step explanation:
so first we need to find the height so by splitting the isosceles triangle into two right-angled triangles and then applying Pythagoras' Theorem to one of them.





We now know the height of the triangle and can use this to go back and find the area of the isosceles triangle.
area of triangle =
x base x height
area of triangle =
x 10 x 12
area of triangle = 60
Answer: x= 1
Step-by-step explanation: Look at pic down below.
Answer:
11x + 6y + 37
Step-by-step explanation: