Question

Pls answer this question it's a bit urgent hope you answer the question. Thank you. Its important. ​

Answer 1

Answer:

45

Step-by-step explanation:

We know that angle in a semi circle is always 90

And in this case the remaining 2 angles are equal as AC=CB

Thus (180-90)/2

=90/2

=45 degree

Hope you understood!

Answer 2

Answer:

45°

Step-by-step explanation:

AB is a diameter. So it lies middle of the circle. The point C is straight from the centre point of the circle. The lines AB, BC, AC makes a triangle. From A to C and from B to C, it makes an angle of 45°.

So, angle CAB = angle CBA = 45°

angle ACB = 90°

The sum of three interior angles of triangle is 180°

CAB+CBA+ACB= 180

45°+45°+90°= 180°