Keliling trapesium samakaki adalah 50 cm. Panjang sisi2 yang sejajar 9 cm dan 21 cm. Maka luas trapesium adalah
Tarisya
K = 2sisi miring + sisi sejajar 50 = 2s + 9 + 21 50-30/2 = s 10 = s
21 - 9 = 12 berarti alas segitiga siku siku = 6 t = 10-6 t = 100-36 (akar) t = akar 64 t = 8
L = jumlah sisi sejajar/2.t L = 21+9/2.8 = 15.8 = 120cm
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ade100K = 2sisi miring + sisi sejajar 50 = 2s + 9 + 21 50-30/2 = s 10 = s21 - 9 = 12 berarti alas segitiga siku siku = 6 t = 10-6 t = 100-36 (akar) t = akar 64 t = 8
L = jumlah sisi sejajar/2.t L = 21+9/2.8 = 15.8 = 120cm
50 = 2s + 9 + 21
50-30/2 = s
10 = s
21 - 9 = 12
berarti alas segitiga siku siku = 6
t = 10-6
t = 100-36 (akar)
t = akar 64
t = 8
L = jumlah sisi sejajar/2.t
L = 21+9/2.8
= 15.8
= 120cm
50 = 2s + 9 + 21
50-30/2 = s
10 = s21 - 9 = 12
berarti alas segitiga siku siku = 6
t = 10-6
t = 100-36 (akar)
t = akar 64
t = 8
L = jumlah sisi sejajar/2.t
L = 21+9/2.8
= 15.8
= 120cm