Question

Question 12
What is the maximum number of obtuse angles that a quadrilateral can have?
a) 1
b) 2
c) 3
d) 4

Answer 1

We know that the sum of all the angles of a quadrilateral is ${360}^{\circ }$.
Also, an obtuse angle is more than ${90}^{\circ }$ and less than ${180}^{\circ }$.
Thus, all the angles of a quadrilateral cannot be obtuse.
Hence, at the most 3 angles can be obtuse.