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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Ili kutatua swali hili, tutatumia kanuni za trigonometry. Kwa kuwa haiwezekani kujenga kimwili, tutakokotoa urefu wa NP.
Kwanza, tunahitaji kuelewa pembe za pembetatu LNM. Pembe zilizopewa ni na . Jumla ya pembe mbili hizi ni . Hii ni zaidi ya , ambayo inamaanisha kwamba pembe hizi haziwezi kuwa pembe za ndani za pembetatu kwa wakati mmoja. Kwa kawaida, katika matatizo ya ujenzi, ikiwa pembe moja ni kubwa kuliko na inafanya jumla ya pembe kuwa zaidi ya , basi pembe ya ndani ya pembetatu inachukuliwa kuwa nyongeza ya pembe iliyotolewa. Kwa hivyo, tutachukulia kwamba pembe ya ndani ya pembetatu LNM kwenye kipeo L ni nyongeza ya .
Step 1: Tafuta pembe za ndani za .
Step 2: Tumia Kanuni ya Saini (Sine Rule) kupata urefu wa upande LN. Kanuni ya Saini inasema: . Katika :
Step 3: Kokotoa urefu wa mstari wima NP. Mstari wima kutoka N unakutana na LM kwenye P. Kwa kuwa na zote ni pembe kali, P iko kati ya L na M. Fikiria pembetatu ya kulia , ambapo pembe kwenye P ni . Ukizungusha hadi sehemu mbili za desimali, tunapata:
Urefu wa NP ni takriban .
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Ili kutatua swali hili, tutatumia kanuni za trigonometry. Kwa kuwa haiwezekani kujenga kimwili, tutakokotoa urefu wa NP.
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.