This mathematics problem involves applying core mathematical principles and formulas. Below you will find a complete step-by-step solution with detailed explanations for each step, helping you understand not just the answer but the method behind it.

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47 cm
24. Tafuta perimita ya bustani ya maua.
Perimita ya sekta (sector) inapatikana kwa kuongeza urefu wa upinde (arc length) na mara mbili ya rediasi (radius).
Hatua ya 1: Tafuta urefu wa upinde. Tunatumia formula ya urefu wa upinde: Ambapo , , na .
Hatua ya 2: Tafuta perimita. Perimita = Urefu wa upinde + rediasi Perimita ya bustani ya maua ni .
25. Mchemraba uliofungwa wenye upande wa 4cm ulikatwa ili kuunda wavu (net).
a) Chora wavu sahihi wa mchemraba. Wavu wa mchemraba unajumuisha nyuso zake sita za mraba zilizounganishwa kwa njia ambayo zinaweza kukunjwa kuunda mchemraba. Kuna aina mbalimbali za nyavu za mchemraba. Mchoro wako unaonyesha mojawapo ya nyavu za kawaida, ambayo ni sahihi. Kila mraba katika wavu unapaswa kuwa na urefu wa upande wa .
Huu hapa ni maelezo ya jinsi ya kuchora wavu wa mchemraba (kama ule uliouchora):
Mchoro wako unaonyesha wavu sahihi wa mchemraba.
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This mathematics problem involves applying core mathematical principles and formulas. Below you will find a complete step-by-step solution with detailed explanations for each step, helping you understand not just the answer but the method behind it.