Ans: D

Explanation: A) Both square and a parallelogram are four-sided figures. So both are quadrilaterals.

B) In both shapes, the pair of opposite angles that are supplementary. So both are parallel.

C) If a line is drawn perpendicular to 'a', it is also perpendicular to 'b'. (Image Source: http://math.about.com/od/formulas/ss/areaperimeter_2.htm)

Question 3

Ans: It is a Trapezoid.

Explanation: It cannot be a square, rectangle or a parallelogram as one of the pair of the lines are not equal. Moreover, the pair of opposite angles that are supplementary. So it is more likely to be a Trapezoid.

Question 4

Ans: No

Explanation: All parallelograms are not squares as squares must have four right-angles and four equal sides.

Entry #16

ReplyDeletethanks idris

Great Job Idris, very good explanations. I agree with your answers. Excellent Work!

ReplyDeleteHardy

S1-09

I understand your answers as they are short and easy to understand. Well done!

ReplyDeleteZhi Yong