 Hello and welcome to the session. My name is Mansi and I'm going to help you with the following question. The question says A, B, C is a right angle triangle in which angle A is equal to 90 degree and A, B is equal to AC. Pied angle B and angle C, let this be the triangle. Here we see that angle A is 90 degree and A, B is equal to AC. Now we have to find this and this angle. Let us start with a solution to this question. We have angle B is equal to angle C because these are the angles opposite to equal sides because A, B is equal to AC. Now in triangle A, B, C, angle A plus angle B plus angle C is equal to 180 degree because sum of angles of a triangle is 180 degree or we can say that 90 degree because angle A is 90 degree plus twice of angle B because angle B is equal to angle C we have already proved is equal to 180 degree or twice of angle B is equal to 180 degree minus 90 degree that is equal to 90 degree. Therefore, angle B is equal to 90 degree by 2 that is 45 degree and we see that angle B is equal to angle C. Therefore, angle B is equal to 45 degree and angle C is equal to 45 degree. Therefore, our answer to this question is h is of 45 degree. So, I hope you understood the question and enjoyed the session. Have a good day.