Question

ABC is an isosceles triangle. Find ZACB​

Answer 1

38*2 = 76.

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Answer 2

In an isoceles triangle, the 2 bottom angles (in this case is angle bad and bcd) are equal.

Triangle DBA and DBC both have 2 equal angles (a right angle, and the bottom angles - property)

So, their third angle must also be equal to each other (cause 3 add up to 180, and since the sum of the first 2 are equal, the third one must also be.)

-> The top angle of triangle BDC is 38

So, we can find angle acb by taking 38 x 2 = 76.