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2D Mensuration || 28.05.2020

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Question 1

The length (in metres) of the longest rod that can be put in a room of dimensions 10 m × 10 m × 5 m is

Question 2

Find the area of a triangle formed by the sides equal to the length of the diagonals of squares of side 3, 4 and 8 cm respectively?

Question 3

If the length of a rectangle is 5 cm more than its width and its area is 24 cm2 , what is the perimeter of the rectangle?

Question 4

A circular swimming pool is surrounded by a concrete wall 4 m wide. If the area of the concrete wall surrounding the pool is 11/25 of that of the pool, then the radius (in m) of the pool is

Question 5

A semicircle is constructed on each side of a square of length 2 m on outer side. Find the area of the whole figure.

Question 6

If the length of the diagonal of a square is a + b, then the area of the square is

Question 7

If diagonals of a rhombus are 24 cm and 32 cm, then perimeter of that rhombus is:

Question 8

If the numerical value of the perimeter of an equilateral triangle is √3 times the area of it, then the length of each side of the triangle is:

Question 9

The length and breadth of a rectangle are in the ratio 5 : 3. If area of the rectangle is 60 cm2, find its length.

Question 10

What is the area of an equilateral triangle of side 24 cm:
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