a + b + c = 22 4 a + b + c + x = 8 a + b + c + x = 32 22 + x = 32 x = 10
10 ;
The fourth number is found by calculating the total sum of the four numbers, which is 32 based on the average. Given that three of the numbers sum to 22, the fourth number must be 10. We calculated this by using the equation derived from the average and the sum of the three numbers.
;
•°• Luas lingkaran yang memiliki jari-jari 84 cm adalah 22.176 cm².[tex] \\ \\ [/tex]Penjelasan dengan langkah-langkah:jari-jari (r) = 84 cmLuas lingkaran = ?[tex] \: [/tex]Luas = πr²Luas = 22/7 × 84²Luas = 22/7 × 7.056Luas = 22 × 1.008Luas = 22.176 cm²[tex] \: [/tex]•°• Jadi, luas lingkaran tersebut adalah 22.176 cm².[tex]~[/tex][tex]__________________________________________________________________________________________[/tex][tex] \\ \\ [/tex] [tex]\blue{\boxed{\colorbox{skyblue}{\rm{- AvR}}}}[/tex]
Diketahuir = 84 cmDitanyaLuasDijawabLuas[tex] = \pi \times {r}^{2} \\ = \frac{22}{ \cancel7} \times \cancel{84} \: {}^{12} \times 84 \\ \\ = 22 \times 12 \times 84 \\ = 264 \times 84 \\ = 22.176[/tex]KesimpulanJadi luasnya 22.176cm2