Question

10. In Fig. 8.69, it is given that AB = AC and DA is
parallel to BC
ZDAB = 70°. Find ZBAC.
(ICSE)
D
70°
B
с
Fig. 8.69​

Answer 1

Answer:

Angle BAC = 40 degrees

Step-by-step explanation:

hope it helps you

Answer 2

Answer:

40°

Step-by-step explanation:

Given - AB = AC

DA ll BC

So, <DAB = <ABC = <ACB = 70°

Sum of angles of a triangle = 180°

<ABC+<ACB+<BAC = 180°

70°+70°+<BAC = 180°

<BAC = 180°-140° = 40°

Hence <BAC = 40°