Question

question from iit jee mains

Answer 1

From triangle at base, the third angle=180-70-60=50°
in left triangle the angles are 10°,130°(sum of opposite interior angles of triangle at base),40°
in right triangle the angles are 130°(sum of opposite interior angles of triangle at base),20°,30°
on combining left and centre triangle we get,
top triangle is congruent to combination left and centre triangle
adjecent angle of x =x
now in combination of right ,centre and top triangle,
we get Isosceles triangle as to angle is 20° and corner angle angle of right triangle is 20° then
20+20+2x=180
2x=140
x=70°
pls choose my answer as brainliest