Jawaban:
C
Penjelasan dengan langkah-langkah:
L1 bangun setengah lingkaran
L1 = ½ x phi x r x r
L1 = ½ x 22/7 x 21 cm x 21 cm
L1 = 693 cm²
L2 bangun segitiga
L2 = ½ x a x t
L2 = ½ x 42 cm x 20 cm
L2 = 420 cm²
L keseluruhan = L1 + L2 = 693 cm² + 420 cm² = 1113 cm²
1.113 cm²
L¹= π×r×r×½
= 22/7 × 21×21×½
= 11×3×21
= 693 cm²
L²=½×a×t
= ½× 42× 20
= 420 cm²
Luas seluruh= 420+693
= 1.113 cm²
maaf jika salah..
semoga membantu..(・∀・)
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Jawaban:
C
Penjelasan dengan langkah-langkah:
L1 bangun setengah lingkaran
L1 = ½ x phi x r x r
L1 = ½ x 22/7 x 21 cm x 21 cm
L1 = 693 cm²
L2 bangun segitiga
L2 = ½ x a x t
L2 = ½ x 42 cm x 20 cm
L2 = 420 cm²
L keseluruhan = L1 + L2 = 693 cm² + 420 cm² = 1113 cm²
Jawaban:
1.113 cm²
Penjelasan dengan langkah-langkah:
L¹= π×r×r×½
= 22/7 × 21×21×½
= 11×3×21
= 693 cm²
L²=½×a×t
= ½× 42× 20
= 420 cm²
Luas seluruh= 420+693
= 1.113 cm²
maaf jika salah..
semoga membantu..(・∀・)