Answer:
50
Step-by-step explanation:
if you take 138 witch equals the whole angle and subtract the second part of the abngle 88 we get 50 equaling the unknown angle
Answer: 125 miles
if you do the math you will get the same answer.
Answer:
3
Step-by-step explanation:
Question 6
first multiply the numerator and
denominator by 9+(2)^1/2
Question 7
Answer:
42
Step-by-step explanation:
In short, the sum of the opposite areas are equal.
x + 30 = 24 + 48
x = 42
To prove this, draw a line from each corner to the "center" where the four lines meet. Along each side of the square are two triangles. These triangles have the same base and the same height, and therefore have the same area.
If we say the triangles at the bottom have area a, the triangles on the left have area b, the triangles on top have area c, and the triangles on the right have area d, then we can write 4 equations:
a + b = x
b + c = 24
c + d = 30
a + d = 48
Adding the first and third equations:
a + b + c + d = x + 30
Adding the second and fourth equations:
a + b + c + d = 24 + 48
Therefore:
x + 30 = 24 + 48
x = 42
