Cho đoạn thẳng AB=7cm. Trên tia AB lấy điểm C sao cho AC= 4cm a)Tính độ dài đoạn thẳng BC b)Trên tia đối của tia BC lấy điểm D sao cho BD=3cm. Tính độ dài đoạn thẳng CD c)Điểm B có là trung điểm của đoạn thẳng CD không?

How do you find the circumfrance of a circle?

Raymond just got done jumping at super bounce trampoline center. the total cost of his session was $43.25 . he had to pay a $7 entrance fee and $1.25 for every minute he was on the trampoline. write an equation to determine the number of minutes (t) that raymond was on the trampoline.

Meghan has created a diagram of her city with her house, school, store, and gym identified. a. how far is it from the gym to the store? b. meghan also wants to walk to get some exercise, rather than going to the gym. she decides to walk along arc ab. how far will she walk? round to 3 decimal places.