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Loci. Using a ruler and a pair of compasses only. a. Construct a triangle ABC such that angle ABC = 135°C, AB = 8.2cm and BC = 9.6cm. b. Given that D is a position equidistant from both AB and BC and also from B and C i. Locate D ii. Find the area of triangle DBC.
Mathematics
ScanSolve AI Answer
Haya Pablo, tuendelee na swali la 2.
2.a) Kujenga pembetatu XYZ
Huu ni ujenzi wa pembetatu kwa kutumia pande mbili na pembe moja (SAS).
- Hatua ya 1: Chora mstari wa urefu wa .
- Hatua ya 2: Katika ncha , jenga pembe ya .
- Hatua ya 3: Kwenye mkono wa pembe ya , pima kutoka ili kupata ncha .
- Hatua ya 4: Unganisha ncha na kukamilisha pembetatu .
2.b) Kupima urefu wa XZ na pembe XZY
Baada ya kujenga pembetatu, pima urefu wa mstari na ukubwa wa pembe kwa kutumia rula na protractor.
- Urefu wa unapaswa kuwa karibu .
- Ukubwa wa unapaswa kuwa karibu .
2.c) Kuchora duara inayopita X, Y na Z
Hili ni duara la nje (circumcircle) la pembetatu .
- Hatua ya 1: Jenga bisector ya perpendicular ya mstari .
- Hatua ya 2: Jenga bisector ya perpendicular ya mstari .
- Hatua ya 3: Sehemu ambapo bisectors hizi mbili zinakutana ndio kitovu cha duara (circumcenter). Iite kitovu hiki .
- Hatua ya 4: Kwa kutumia kama kitovu na (au au ) kama rediasi, chora duara. Duara hili litapita kwenye ncha , , na .
2.d) Kujenga locus ya M na kuifafanua
- Hatua ya 1: Locus ya pointi ambazo ziko umbali sawa kutoka na ni bisector ya perpendicular ya mstari .
- Hatua ya 2: Jenga bisector ya perpendicular ya mstari .
- Ufafanuzi wa locus: Locus ya ni bisector ya perpendicular ya mstari .
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