Q5 of 33 Page 55

Explain why a rectangle is a convex quadrilateral

In a rectangle, there are two diagonals, both lying in the interior of the rectangle

Hence, it is a convex quadrilateral


More from this chapter

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2

Identify all the quadrilaterals that have.

(a) Four sides of equal length


(b) Four right angles

 3

Explain how a square is

(i) a quadrilateral


(ii) a parallelogram
(iii) a rhombus


(iv) a rectangle

 4

Name the quadrilaterals whose diagonals

(i) Bisect each other


(ii) Are perpendicular bisectors of each other


(iii) Are equal

 6

ABC is a right-angled triangle and O is the mid-point of the side opposite to the right angle. Explain why O is equidistant from A,B and C. (The dotted lines are drawn additionally to help you).