A square with sides of 15 units each. What would be the area of the square. Consider a square as a combination of two right angled triangles.  Choose the most appropriate option.
A) 100 B) 256 C) 225 D) 81 E) 144
A square can be considered as a set of two right angled triangles joined from the hypotenuse.   Since the sides are 10 units each. The height and base of both the triangles is 10 each.   Area of a right angled triangle is 1/2 * base * height   Area of both the triangles is 2 * 1/2 * base * height. Since both triangles are similar.   = base * height   = 15*15= 
<gadget id="calculator">15*15</gadget>
<output>225</output>
225   Ans: 225
<result>C</result>
A square with sides of 15 units each. What would be the area of the square. Consider a square as a combination of two right angled triangles.