На рисунке ab=ac, ae=ad. докажите что, bd=ce

How many  windows are there in the room?                                                                                                                        How much sugar is  there?                                                                                                                                                              How many oceans are there on the Eerth?                                                                                                                                                       How much snow is there in the garden?                                                                                                                                                                            How many days are there in April?                                                                                                                                                                                                                     How much oil is there in the glass?        

I was born in nineteen ninety-fifth, on the twenty-first of December in  Nerungri. I moved to Moscow when I was  five years old and I study at school number fourteen from  the first grade. Now I'm in  the tenth form. In my  free time I do sports or walk with a friend.  I haven't yet chosen future profession. My mother's name is Olya, she was born in nineteen sixty-four , her native town is Nurby. She has different hobbies. She likes horses and camping. I has new job in St. Petersburg's university. She is a methodologist.