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.
A triangle is formed by the coordinates A (2, 1), B (4, 1) and C (1, 6). Draw the image of the triangle after rotation through +90°. Give the coordinates of A¹B¹C¹ (4mks)

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3 stepsAnswer
A'(-1, 2), B'(-1, 4), C'(-6, 1)
Huu hapa ni utatuzi wa swali la mzunguko:
Step 1: Bainisha sheria ya mzunguko. Mzunguko wa +90° (digrii 90 kinyume na mwelekeo wa saa) kuhusu asili (0,0) hubadilisha pointi kuwa .
Step 2: Tumia sheria ya mzunguko kwa kila kipeo cha pembetatu.
- Kwa kipeo A(2, 1):
- Kwa kipeo B(4, 1):
- Kwa kipeo C(1, 6):
Step 3: Andika kuratibu za picha. Kuratibu za picha ya pembetatu A'B'C' ni:
Step 4: Eleza jinsi ya kuchora pembetatu. Ili kuchora pembetatu asilia na picha yake:
- Chora mfumo wa kuratibu (x-axis na y-axis).
- Weka pointi A(2, 1), B(4, 1), na C(1, 6) kwenye grafu na uziunganishe ili kuunda pembetatu ABC.
- Weka pointi A'(-1, 2), B'(-1, 4), na C'(-6, 1) kwenye grafu hiyo hiyo na uziunganishe ili kuunda pembetatu A'B'C'.
Kuratibu za picha ya pembetatu baada ya mzunguko wa +90° ni: 4 down, 1 left today. What's next?
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Huu hapa ni utatuzi wa swali la mzunguko: Step 1: Bainisha sheria ya mzunguko. Mzunguko wa +90° (digrii 90 kinyume na mwelekeo wa saa) kuhusu asili (0,0) hubadilisha pointi (x, y) kuwa (-y, x).