Mohon bantuannya, tolong dari no 1 sampai 10. jawab nya harus benar tidak boleh asal jawabannya asal - asal -an akan dihapus dengan jawaban nya yang benar akan di jadikan yang terbaik dan di beri terima kasih
helenatifani
1. a) K = 36cm L= 80 cm2 b) K = 56 cm L= 192 cm2 c) l = 11 cm L = 187 cm2 d) p = 30 cm L =724 cm2 e) l = 13 cm K= 60cm f) p= 12 cm K= 39 cm 2. p= 24 cm 3. gaktau 4.mungkin 16 cm 5. kurang tau 6. kurang tau 7. a. 16 cm b. 21 cm c. 168 cm2 8. a) 10 cm dan 14 cm b) kalo hak salah 25 : 49 9. 221 cm2 10.720 cm2
stevanadika
1. a. K = 2(p+l) = 36cm, L = pxl = 10x8 = 80cm2 b. K = 2(p+l) = 56cm, L = pxl = 16x12 = 192cm2 c. K = 2(p+l) -> 56 = 2x17 + 2xl, -> l = 11 cm, L = pxl = 17x11 = 187 cm2 d. K = 2(p+l) -> 108 = 2x24 + 2xp -> p = 30cm. L = pxl = 30x24 = 720cm2 e. l = L/p = 221/17 = l = 13 cm. K = 2(p+l) = 60cm f. p = L/l = 90/7,5 = 12 cm. K = 2(p+l) = 39cm
2. K pp = K psg 2(p+l) = 4s 2p + 16 = 32 2p = 16 p = 8 cm
3. p = 60, l = 40 -> L = 2.400 cm2 L kolam = 30x30 = 900 cm2 2.400 - 900 = 1.500 m2
4. l = 15cm, L = p x l, L = 240 = p x 15 => p = 16 cm -> AB
5. belom bisa bikin koordinat kartesius, susah haha
6. idem alasannya
7. d1 = 21 cm, PT = RT = 8 cm a. PR = 8x2 = 16 cm b. QS=d1 = 21 cm c. L = 1/2 x d1 x d2 = 1/2 x 21 x 16 = 21 x 8 = 168 cm2
8. a. Persegi I K = 40, s = 40/4 = 10 cm Persegi II K = 56, s = 56/4 = 14 cm
b. Luas P1 : Luas P2 10x10 : 14x14 100 : 196 = 25 : 49
b) K = 56 cm L= 192 cm2
c) l = 11 cm L = 187 cm2
d) p = 30 cm L =724 cm2
e) l = 13 cm K= 60cm
f) p= 12 cm K= 39 cm
2. p= 24 cm
3. gaktau
4.mungkin 16 cm
5. kurang tau
6. kurang tau
7. a. 16 cm
b. 21 cm
c. 168 cm2
8. a) 10 cm dan 14 cm
b) kalo hak salah 25 : 49
9. 221 cm2
10.720 cm2
a. K = 2(p+l) = 36cm, L = pxl = 10x8 = 80cm2
b. K = 2(p+l) = 56cm, L = pxl = 16x12 = 192cm2
c. K = 2(p+l) -> 56 = 2x17 + 2xl, -> l = 11 cm, L = pxl = 17x11 = 187 cm2
d. K = 2(p+l) -> 108 = 2x24 + 2xp -> p = 30cm. L = pxl = 30x24 = 720cm2
e. l = L/p = 221/17 = l = 13 cm. K = 2(p+l) = 60cm
f. p = L/l = 90/7,5 = 12 cm. K = 2(p+l) = 39cm
2.
K pp = K psg
2(p+l) = 4s
2p + 16 = 32
2p = 16
p = 8 cm
3.
p = 60, l = 40 -> L = 2.400 cm2
L kolam = 30x30 = 900 cm2
2.400 - 900 = 1.500 m2
4. l = 15cm, L = p x l, L = 240 = p x 15 => p = 16 cm -> AB
5. belom bisa bikin koordinat kartesius, susah haha
6. idem alasannya
7. d1 = 21 cm, PT = RT = 8 cm
a. PR = 8x2 = 16 cm
b. QS=d1 = 21 cm
c. L = 1/2 x d1 x d2 = 1/2 x 21 x 16 = 21 x 8 = 168 cm2
8.
a.
Persegi I K = 40, s = 40/4 = 10 cm
Persegi II K = 56, s = 56/4 = 14 cm
b. Luas P1 : Luas P2
10x10 : 14x14
100 : 196 = 25 : 49
9. p = 3x - 2, l = 2x + 7
K = 2p + 2l, L ?
60 = 2(3x-2) + 2(2x+7)
60 = 6x - 4 + 4x + 14
60 = 10x + 10
50 = 10x
x = 5
p=3x-2 -> 3x5 - 2 = 13 cm
l=2x+7 -> 2x5 + 7 = 17 cm
L = 13x17 = 221 cm2
10. capek jawab :(