Question

What will be the area of the blue triangle in the given square?

• A. 8 sq.cm
• B. 9 sq.cm
• C. 10 sq.cm
• D. 11 sq.cm

Answer 1

The correct option is A 8 sq.cm

The area of square
= side $\times$ side
= 8 $\times$ 8
= 64 sq.cm

Also if you notice we can divide the whole square into 8 triangles of equal area as shown in figure




Areaof square = Area of a triangle $\times$ 8
Area of a triangle = 64 $÷$ 8
= 8 sq.cm