A square is plotted on a coordinate plane. Henry claims that any transformation on the square will preserve the length of its sides Which of the following transformations could be used to show that Henry's claim is incorrect ? Select all that apply translation of 5 units to the right
horizontal stretch by a factor of 1/3
dilation by a factor of 2 through the origin
rotation of 45 degrees clockwise about the square center
a reflection over the x-axis

Okay so for every triangle has three angles that always add up to 180 degrees. and to tell the difference between whether they are secure, right or obtuse is that acute: has one angle that is less than 90 degrees. right triangle means there is at least one angle that is exactly 90 degrees. and an obtuse angle has an angle that is bigger than 180 degrees. i’ll do #13 as an example: 13. 40 and 50 so if every triangle has 180 degrees 40+50= 90 degrees then180-90= 90 degrees so the third angle is 90 degrees and because this triangle has a 90 degree angle it means it is a right triangle

The correct awnser is 29.76 pounds.