Your teacher asks the class to evaluate the expression (3³)¹. Your classmate gives an incorrect answer of 81. Evaluate the expression. Then find the likely error.

the answer will be 27

Answer is 45 degrees

SQRS being a square it means all of its corners are 90 degrees.
If T is the middle point of the the square. Exacted in the center of the square.

In a square the diagonals are always at a 45 degrees therefore the angle formed by SPT is 45