Maths Activity 3. Ng Kok Yin. Question: 1,3,4.

Question 1:

A rhombus has to have four sides that are parallel to each other. The sides must also be of the same length.

A square has to have four sides that are parallel to each other and are of same length. The angles of all four corners must be 90 degrees.

Hence, a square is a rhombus as a square has four sides and all parallel to each other and the sides are of the same length but a rhombus is not a square as the rhombus's four corners are not 90 degrees.

Question 3:

The figure is a Parallelogram.

It is a parallelogram as the opposite sides is equal in length while the other pair is not. 

Example:

One pair is 7.2cm while the other is 5.29.

The opposite angles are supplementary.

Example:

120.45 degree + 59.55 degree = 180 degree.

Question 4:

'All parallelograms are squares?' Do you agree with this statement?

Justify your answer with example/s.

I disagree. For example, all females are humans but not all humans are females. For a parallelogram to be a square,it has to have four sides that are parallel to each other and are of same length and the angles of all four corners must be 90 degrees.