Below is an instruction that describes a task. Write a response that appropriately completes the request in Swahili. Please answer in Swahili.

### Instruction:
 Joy ana miguu 250 ya kanda. Anataka kuizungusha kanda hiyo kwenye shamba lenye upana wa miguu 20 na urefu wa miguu 60. Joy atakuwa na kiasi gani cha kanda kilichobaki baada ya kuizungusha kanda mara moja kwenye shamba?


### Response:
 Umbo la shamba ni miguu 20 + 20 + 60 + 60 = <<20+20+60+60=160>>160.
Joy atakuwa na miguu 250 - 160 = <<250-160=90>>90 ya kanda iliyobaki.