Answer:
No, it is not a rectangle because the sides of the
parallelogram do not meet at night angles (B)
Step-by-step explanation:
The diagonal of the rectangle = 28
The two sides of the figure measures 20 and 21 units respectively.
To determine if the shape is a rectangle, we would apply Pythagoras theorem
hypotenuse² = opposite² + adjacent²
hypotenuse = diagonal = 28
The other two sides represent the opposite and adjacent
28² = 20² + 21²
784 = 400 + 441
784 ≠ 841
The square of the diagonal is not equal to the sum of the square of the other two sides (length and width). And as a result of this, the triangle isn't a right angled triangle and the sides of the parallelogram would not meet at right angles.
Therefore, the figure isn't a rectangle.
Option B: No, it is not a rectangle because the sides of the
parallelogram do not meet at night angles.
