Explain how a square is a- i) quadrilateral ii) parallelogram iii) rhombus iv) rectangle

Explain how a square is – i) quadrilateral ii) parallelogram iii) rhombus iv) rectangle

Explain how a square is a - quadrilateral

Explain why a rectangle is a parallelogram but a parallelogram may not be a rectangle?

Given statements in (a) and (b). Identify the statements given below as contrapositive or converse of each other. (b) If a quadrilateral is a parallelogram, then its diagonals bisect each other. (i) If the diagonals of a quadrilateral do not bisect each other, then the quadrilateral is not a parallelogram. (ii) If the diagonals of a quadrilateral bisect each other, then it is a parallelogram.

In Delta^(s)ABC and, AB"||"DE, BC=EF and BC"||"EF . Vertices A, B and C are joined to vertices D, E and F respectively (see figure). Show that (i) ABED is a parallelogram (ii) BCFE is a parallelogram (iii) AC = DF (iv) DeltaABC~=DeltaDEF

Explain briefly the following term with suitable example :- (i) protonema (ii) antheridium (iii) archegonium (iv) diplontic (v) sporophyll (vi) isogamy

Identify the terrestrial mammals from the following . (i) Balaenoptera (ii) Elephas (iii) Delphinus (iv) Panthera (v) macropus

(i) Is quadrilateral EFGH a convex quadrilateral? (ii) Is quadrilateral TUVW a concave quadrilateral? (iii) Draw both the diagonals for quadrilateral EFGH. Do they intersect each other? (iv) Draw both the diagonals for quadrilateral TUVW. Do they intersect each other?

Carefully study the following parallelograms. i) find the area of each parallelogram by counting the squares enclosed in it. For counting incomplete squares check weather two incomplete squares make a complete square in each parallelogram. complete the following table accordingly. ii) do parallelograms with equal bases and equal heights have the same area?

Carefully study the parallelograms. (i) Find the area of each parallelogram by counting the squares enclosed in it. For counting incomplete squares check whether two incomplete squares make a complete square in each parallelogram. Complete the following table accordingly-