indah1383
2. luas persegi = s × s = 17 × 17 = 289 luas segitiga = 1/2 × a × t = 1/2 × 12 × 17 = 102 luas bangun tersebut = luas persegi + luas segitiga = 289 + 102 = 391
3. luas jajargenjang = a × t 240 = 16 × t 240 ÷ 16 = t 15 = t
5. luas persegi = s × s = 28 × 28 = 784 luas lingkaran = phi × r × r = 22/7 × 14 × 14 = 616 luas daerah berbayang = luas persegi - luas lingkaran = 784 - 616 = 168
6. volume tabung = phi × r × r × t = 3,14 × 20 × 20 × 50 = 62800
8 .Volume (prisma segitiga) = (1/2 x alas segitiga x tinggi segitiga) x tinggi prisma 3000 = (1/2 × 10 × 15 ) × t 3000 = 75 × t 3000 ÷ 75 = t 40 = t
9. volume tabung = phi × r × r × t = 22/7 × 7 × 7 × 24 = 3696
10. volume tabung = phi × r × r × t = 3,14 × 3,5 × 3,5 × 8 = 307,72 volume kubus = s × s × s = 7 × 7 × 7 = 343 volume bangun tersebut = volume tabung + volume kubus = 307,72 + 343 = 650,72
= s × s
= 17 × 17
= 289
luas segitiga
= 1/2 × a × t
= 1/2 × 12 × 17
= 102
luas bangun tersebut
= luas persegi + luas segitiga
= 289 + 102
= 391
3. luas jajargenjang = a × t
240 = 16 × t
240 ÷ 16 = t
15 = t
4.luas belah ketupat
= 1/2 × d1 × d2
= 1/2 × 18 × 25
= 225
5. luas persegi
= s × s
= 28 × 28
= 784
luas lingkaran
= phi × r × r
= 22/7 × 14 × 14
= 616
luas daerah berbayang
= luas persegi - luas lingkaran
= 784 - 616
= 168
6. volume tabung
= phi × r × r × t
= 3,14 × 20 × 20 × 50
= 62800
8 .Volume (prisma segitiga) = (1/2 x alas segitiga x tinggi segitiga) x tinggi prisma
3000 = (1/2 × 10 × 15 ) × t
3000 = 75 × t
3000 ÷ 75 = t
40 = t
9. volume tabung
= phi × r × r × t
= 22/7 × 7 × 7 × 24
= 3696
10. volume tabung
= phi × r × r × t
= 3,14 × 3,5 × 3,5 × 8
= 307,72
volume kubus
= s × s × s
= 7 × 7 × 7
= 343
volume bangun tersebut
= volume tabung + volume kubus
= 307,72 + 343
= 650,72