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WXYZ is a rectangle. Study and use it to answer the questions that follow.
Mathematics
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Haya master, hapa kuna masuluhisho ya maswali uliyotuma:
1. Mark ni mdogo kwa miaka 4 kuliko James. Jumla ya umri wao ni miaka 32. Tafuta umri wa Mark.
- Hatua ya 1: Acha umri wa Mark uwe na umri wa James uwe .
- Hatua ya 2: Kutokana na taarifa, tunaweza kuunda milinganyo miwili:
- Mark ni mdogo kwa miaka 4 kuliko James:
- Jumla ya umri wao ni miaka 32:
- Hatua ya 3: Badilisha mlinganyo wa kwanza () kwenye mlinganyo wa pili:
- Hatua ya 4: Ongeza 4 pande zote mbili za mlinganyo:
- Hatua ya 5: Gawanya pande zote mbili kwa 2 ili kupata umri wa James:
- Hatua ya 6: Sasa tumia umri wa James kupata umri wa Mark: Umri wa Mark ni .
2. WXYZ ni mstatili. Tafuta thamani ya na vipimo vya mstatili.
Kumbuka: Maswali mahususi hayakuonekana kwenye picha, kwa hivyo nitapata thamani ya na vipimo vya mstatili.
- Hatua ya 1: Katika mstatili, pande zinazoelekeana ni sawa. Hivyo, urefu wa ZY ni sawa na urefu wa WX, na urefu wa WZ ni sawa na urefu wa XY.
- Hatua ya 2: Tumia milinganyo ya pande zinazoelekeana ili kupata thamani ya : Kwa kuwa :
- Hatua ya 3: Tatua mlinganyo kwa : Thamani ya ni .
- Hatua ya 4: Sasa tumia thamani ya kupata vipimo vya mstatili:
- Urefu (ZY au WX):
- Upana (XY au WZ):
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