the three angles of a triangle are in the ratio 2 : 1 : 2: find the measure of the angles and state the kind of triangle
Answers
Answer:
32°
16°
32°
Kind of Triangle:
by side: isosceles triangle
by angle: acute angled triangle.
Step-by-step explanation:
let one part (constant) be x
ratio of the angles of triangle = 2:1:2
(angle sum property of triangles states that the summ of all the angles of a triangle is 180°)
:. 2x + x + 2x = 180°
=> 5x = 180°
=> x = 180°/5
=> x = 16°
therefore
angle 1 = 2x = 2×16 = 32°
angle 2 = x = 16°
angle 3 = 2x = 32°
kind of triangle:
by angle: ACUTE ANGLED TRIANGLE (as all the angles of the given triangle are less than 90° it is an acute angled triangle)
by side: ISOSCELES TRIANGLE (as one of the property of an isosceles triangle is that the side opposite to the equal angles are equal)
Step-by-step explanation:
Let the angle= x
each angle = 2x, x, 2x
According to angle sum property of a triangle,
2x + x + 2x = 180°
5x = 180°
x = 180°/5
x = 36°
angles of the triangle are:
36° , 72° ,72°
it is an acute triangle.