Penjelasan dengan langkah-langkah:
L = 1/2 × d1 × d2
L = 1/2 × 10 × 14
L = 5 × 14
L = 70 cm²
__
untuk keliling, kita cari dlu sisi nya
= √(10÷2)² + (14÷2)²
= √5² + 7²
= √25 + 49
= √74
= 8,6
Kelilingnya
K = 4s
K = 8,6 × 4
K = 34,4 cm
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Penjelasan dengan langkah-langkah:
L = 1/2 × d1 × d2
L = 1/2 × 10 × 14
L = 5 × 14
L = 70 cm²
__
untuk keliling, kita cari dlu sisi nya
= √(10÷2)² + (14÷2)²
= √5² + 7²
= √25 + 49
= √74
= 8,6
Kelilingnya
K = 4s
K = 8,6 × 4
K = 34,4 cm