Plisss bantuin no 5-7 pakai caraa dapet pahala bantu orang
cakwalajingga66
5. K. persegi panjang = K. persegi 2p + 2l = 4 . s 2p + 2.6 = 4 . 12 2p + 12 = 48 2p = 48-12 2p = 36 p = 36 2 p = 18 6. PQ = √ 29²-21² = √ 841-441 = √400 = 20
Keliling = 20 + 29 +21 = 70 cm
7. K = jumlah sisi sejajar + 2 sisi miring 50 = 9 + 21 + 2 sisi miring 50 = 30 + 2 sisi miring 50 - 30 = 2 sisi miring 20 = 2 sisi miring 20 / 2 = sisi miring 10 = sisi miring
t trapesium = √10² - 6² = √100 - 36 = √64 = 8
Luas trapesium = 1/2 x jumlah sisi sejajar x tinggi = 1/2 x (9 +21) x 8 = 1/2 x 30 x 8 = 120 cm²
2p + 2l = 4 . s
2p + 2.6 = 4 . 12
2p + 12 = 48
2p = 48-12
2p = 36
p = 36
2
p = 18
6. PQ = √ 29²-21²
= √ 841-441
= √400
= 20
Keliling = 20 + 29 +21
= 70 cm
7. K = jumlah sisi sejajar + 2 sisi miring
50 = 9 + 21 + 2 sisi miring
50 = 30 + 2 sisi miring
50 - 30 = 2 sisi miring
20 = 2 sisi miring
20 / 2 = sisi miring
10 = sisi miring
t trapesium = √10² - 6²
= √100 - 36
= √64
= 8
Luas trapesium = 1/2 x jumlah sisi sejajar x tinggi
= 1/2 x (9 +21) x 8
= 1/2 x 30 x 8
= 120 cm²