In a square ABCD, the diagonals bisect at O, then ΔAOB is :
A. an isosceles but not a right angled triangle
B. an isosceles right angled triangle
C. an equilateral triangle
D. a right angled but not an isosceles triangle.
Answer:B
In a square ABCD, the diagonals bisect at O, then ΔAOB is :
A. an isosceles but not a right angled triangle B. an isosceles right angled triangle C. an equilateral triangle D. a right angled but not an isosceles triangle.