Plz find the value of x in the following figures (asap I’ll mark as brainliest)
Answers
Answer:
(I) given three angles are x, 50 and 70
Sum of all angles in a triangle is 180 ( by angle sum property)
X + 50 + 70 = 180
X+120 = 180 ( shifting 120 to right hand side it becomes - 120)
X = 180-120
X = 60
(ii) given three angles in a triangle are a, 65 & 65
Sum of all angles in a triangle is 180 (by angle sum property)
A + 65 + 65 = 180
A + 130 = 180 ( shifting 130 to right hand side it becomes - 130)
A= 180-130
A = 50
(v) given two angles of a triangle 50 and 70 and one exterior angle x
Addition of two interior angles of a triangle is equal to opposite exterior angle
50+70 = x
X = 120
(vi) given two angles of a triangle b and 95 and exterior angle is 120
Addition of two interior angles of a triangle is equal to opposite exterior angle
B + 95 = 120 ( shifting 95 to right hand side it becomes - 95)
B = 120-95
B = 25
Answer:
(i)60° (ii)50° (v)120° (vi)25°
Step-by-step explanation:
(i) by triangle angle sum property
50+70+x=180
x+120=180
x=180-120=60
(ii)by angle sum property of triangle
65+65+x=180
130+x=180
x=180-130=50
(v)by exterior angle property
50+70=x
x=120
(vi)by exterior angle property
x+95=120
x=120-95
x=25