Which of the following is an example of an obtuse-angled triangle?

Q. Which of these shows an obtuse angled triangle?

Q. Which of the following is an example of obtuse angle ?

Q. Determine which one of the following figure is an orthocenter of an obtuse angled triangle?

Q. By giving a counter example, show that the following statement is not true.
p : "If all the angles of a triangle are equal, then the triangle is an obtuse angled triangle".

Q. If $△ABC$ is an obtuse angled triangle in which $<C={110}^0$ then which one of the following is true-