Question

In ∆ABC
ABC= 60
BAC=x
AD=BC
DAC=70
x=?​​

Answer 1

Answer:

angle DAC = angle BCA

DAC =BCA = 70°

since interior angle of a triangle is =180

BCA+ CBA+BAC= 180°

70°+ 60° + BAC = 180°

130° + BAC = 180°

180° - 130° = BAC

BAC = 50°

angle BAC = 50°

Answer 2

Answer:

ANGLE A IS EQUAL TO 30°

Step-by-step explanation:

angle A is equal to angle C (alt.inter.angle)

angle A + angle B+angle C =180°(Angle sum property)

angle B=60°(given)

angle C= 70°(Alt.inter.angle)

angle A=?

60°+70°+angle A= 180°

150°+angle A= 180°

angle A= 180°-150°

angle A= 30°