Question

Q2 a) If the interior angles of a triangle are 60º , xº
and its opposite exterior angle is (2x+4) º. Find all the
interior angles of the triangle. Also find the measure
of its given exterior angle.
b) An exterior of a triangle is 130º and one of the
interior opposite angles is 45º. Find the other two
angles of the triangle.
c) If one angle of the triangle is equal to the sum of
the other two. Show that the triangle is right angled.

Answer 1

Answer:

Step-by-step explanation:

Property used :

Exterior angle of a triangle is equal to the sum of interior opposite angles.

and

Sum of all angles of a triangle = 180 degrees

a) maths_triangle.jpg

b) maths_triangle_b.jpg

c) maths_triangle_c.jpg