Question

Rini, Suchandra and Rai made a table with empty

match boxes. They coloured the boxes in such

a way that the toy table looks like a table. They

made drawers with handle. All the match boxes are

identical. The length, breadth and height of the match

box are 2.5 cm by 4 cm by 1.5 cm.

(a) How many match boxes are needed to make the

table as shown in the figure?

(i) 7 (ii) 6 (iii) 8 (iv) 5

(b) What is the total volume of the match boxes?

(i) 90 cm3 (ii) 105 cm3 (iii) 75 cm3 (iv) 15 cm3

(c) How much area is covered by the floor?

(i) 20cm2 (ii) 100 cm2 (iii) 30 cm2 (iv) 10 cm2

(d) What is the surface area of the top of the table?

(i) 30 cm2 (ii) 10 cm2 (iii) 100 cm2 (iv) 60 cm2

(e) Is the table steady? Are the two sides (left & right) has same volume? What

is the volume difference?

(i) no, 30 cm3 (ii) no, 10 cm3

(iii) no, 6 cm3 (iv) yes, same volume​

Answer 1

Step-by-step explanation:

The diagram shows ABC with vertices A(-1, 1),

B(-1, -2) and c(3,-1)

(i) Find the lengths of AB, BC and AC.

(ii) Find the area of ABC.

The coordinates of a point E are (3, k) and the

area of ABCE is 14 units.

(iii) Find the possible values of k.

I need and of part 3

hi