The size of the 4th angle is 72.
Given:
1st angle = 148
2nd angle = 104
3rd angle = 36
shape = quadrilateral.
A quadrilateral is a shape that has 4 sides or edges, 4 corners or vertices.
It goes to show that it must also have 4 angles. These four angles must give the sum of 360°.
Since the first three angles are given, we can get the fourth angle by deducting the sum of the three angles from 360°
4th angle = 360° - 148° - 104° - 36°
= 360° - 288°
4th angle = 72°
R=9 in
A= πr2
A=3.14 • 9^2
A=3.14•81
A=254.34 in sq
Easy
if x is the number
sqrt x is between 17 and 18
17<√x<18
squaer the whole thing
289x could be 300
it could be sqrt of 300
√300=10√3
one is 10√3
<span>In general when a point is rotated through 90° counterclockwise about the origin, first notice in which quadrant the image of the point is located. Suppose the image of point P</span> (h, k). When you rotate it through 90° counterclockwise it takes the image M' (k, -h)
In the example M(-1,5) : it's located in the 2nd quadrant & if you rotate it through 90° counterclockwise M' will be located in the third quadrant where both h & k are negative. So M'(-5,-1)
