Question

Area of squre? AND GIVE M A PROPER SOLUTION?.

Answer 1

Answer:-

Given:

Side of the big square = (5 + 10) units => 15 cm.

We know that, area of a square = a²

Area of big square = (15 units)²

Area of big square = 225 unit²

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We can observe that, there are four right angled triangles which are equal in length.

Hence, as we know that area of a right angled triangle is ab/2,

Area of the Four right- angled triangles = 4(ab/2) = 2ab

Area of four right angled triangles = 2*15*5

Area of four right angled triangles = 150 unit²

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Now,

Area of the coloured square = Area of larger square - Area of four right angled triangles.

Area of the coloured square = 225 - 150

Area of the coloured square = 75 unit²

Hence, the area of the coloured square is 75 unit².