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.
ScanSolve AI Answer
❌ Incorrect. Hesabu yako ya (22)/(7) × 21 × 21 = 1386 cm ni sahihi kwa kutoa eneo la duara (area of a circle) lenye radiasi ya 21 cm. Hata hivyo, swali linauliza mzingo wa gurudumu (circumference of the wheel), sio eneo lake. Fomula ya mzingo wa duara ni C = 2 r. Step 1: Tumia fomula sahihi ya mzingo wa duara. Kwa kutumia radiasi r = 21 cm (kama inavyoonekana kwenye hesabu yako) na = (22)/(7). Step 2: Badilisha maadili kwenye fomula. C = 2 × (22)/(7) × 21 cm Step 3: Rahisisha na kokotoa mzingo. C = 2 × 22 × (21)/(7) cm C = 2 × 22 × 3 cm C = 44 × 3 cm C = 132 cm Mzingo sahihi wa gurudumu ni: 132 cm That's 2 down. 3 left today — send the next one.