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The phrase "economic challenges across nations" indicates that these challenges are spread or present in various countries, so "across" is the correct preposition to use.
Find the number of triangles in the given figure.
Find the total number of triangles in the figure.
How many triangles are there in the figure?
In the adjoining figure, if the centres of all the circles are joined by horizontal and vertical lines, then find the number of squares that can be form...
Count the number of squares in the given figure.
How many triangles are there in following figure?
Find the number of triangles in the given figure:
In the adjoining figure, if the centres of all the circles are joined by horizontal and vertical lines, then find the number of squares that can be form...
Find the number of quadrilateral in the given figure?