The sum of the interior angles of a triangle is:
90°.
120°.
180°.
360°.
The angles of a triangle are in the ratio 5:3:7. The triangle is:
Right triangle.
Obtuse-angled triangle
Isosceles triangle
Acute-angled triangle
If one of the angles of a triangle (BAC) is 130°, then what is the value of the angles ABC and BCA respectively?
None is correct.
25° and 25°.
50° and 50°
20° and 30°.
In the given figure, if OP||RS,
∠OPQ = 110° and ∠QRS = 130°,
then ∠PQR is equal to:
60°.
70°.
40°.
50°.
