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

### Instruction:
Hunter needs to make a square patch of land whose perimeter is twice as large as a rectangular patch of land. If the rectangular patch of land has a length of 400 feet and a width of 300 feet, calculate the length of one side of the square patch of land.

### Response:
 Ikiwa eneo la ardhi lenye umbo la pembetatu lina urefu wa futi 400 na upana wa futi 300, urefu jumla kuzunguka eneo hilo au umbo lake ni 2 * 400 + 2 * 300 = 800 + 600 = <<2*400+2*300=1400>>1400
Urefu wa eneo la ardhi lenye umbo la mraba ni mara mbili ya urefu huo, hivyo ni 2 * 1400 = <<2*1400=2800>>2800
Kwa kuwa pande zote za eneo la ardhi lenye umbo la mraba ni sawa, upande mmoja wa eneo hilo utakuwa na urefu wa 2800/4 = <<2800/4=700>>700 futi.