Question

Q1. a hall is of length 30cm and breadth 20m. it is surrounded by a 3m wide verandah on the outside. find the area of the verandah . also find the number of tiles of dimensions 50cm × 50cm which will be required to cover the verandah.



state true or false

Q1. The congruent figures super impose each other completely.
Q2. a one rupee coin is congruent to a five rupee coin
Q3. The top and bottom faces of a kaleidoscope are congruent.
Q4. Two acute angles are congruent
Q5. Two right angles are congruent
Q6. Two figures are congruent if they have the same shape
Q7. If the areas of two squares is same they are congruent
Q8. If the areas of two rectangles are same they are congruent
Q9. If the areas of two circles are the same they are congruent
Q10. Two squares having same perimeter are congruent


answer these all questions

Answer 1

I think that the question is wrong ,but I have done according to the question.

According to me , the length should be 30m rather than 30cm... now according to this the answer must be the second picture.

True & False
1.True
2.False, it is similar but not congruent
3.True
4.False
5.True
6.False
7.True
8.True
9.True
10.True

Answer 2

336 m² is Area of verandah  and  1344 tiles required

Step-by-step explanation:

Hall Length = 30 m

Hall Breadth = 20 m

surrounded by a 3m wide verandah on the outside

Length including verandah  = 30 + 3 + 3 = 36 m

Breadth including verandah  = 20 + 3 + 3 = 26 m

Area of verandah = 36*26 - 30*20

= 936 - 600

= 336 m²

Tile Size = 50 cm * 50cm

Area of Tile = (50/100) * (50/100)

= (1/2) * (1/2)

= 1/4  m²

Number of Tiles required = 336/(1/4)

= 1344

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