Answer:
if a polygon is square,then it is also a rectangle is correct
Step-by-step explanation:
1)if a polygon has 4 right angles,then it is a square is wrong since in the statement a square has all its angles as right angles but it need not imply that it is a square as it could also be a rectangle
2) polygon need not have four right angles eg:rhombous with angles 60°,60°,120°,120° is also a polygon
3)every polygon need not be a rectangle as it could be square
4)if a polygon is square, then all its angles are right angles and if all its angles are right then it is rectangle.
hence option 4 is true.
you can put both sides of the equation to the 4th power
![( \sqrt[4]{d - 15}) ^{4} = (2)^{4}](https://tex.z-dn.net/?f=%28%20%5Csqrt%5B4%5D%7Bd%20-%2015%7D%29%20%5E%7B4%7D%20%20%20%3D%20%282%29%5E%7B4%7D%20)
Answer: 14
Step-by-step explanation:
By the geometric mean theorem,
Answer:
Step-by-step explanation:
5x-7=24
Answer: r=2.69. Calculate the radius of circle:Round the number: r=2.69Answer: r=2.69
