● Materi : Luas bangun datar
● Kode Kategorisasi : 5.2.3
Jawaban:
Penjelasan dengan langkah-langkah:
a = √7^2 + 4^2
a = √49 + 16
a = √65 cm
b = √√65^2 - 1^2
b = √65 - 1
b = √64
b = 8 cm
K = 4 + 7 + 1 + 8
K = 20 cm
L = (1/2 . a . t) + (1/2 . a . t)
L = (1/2 . 4 . 7) + (1/2 . 1 . 8)
L = (2 x 7) + 4
L = 14 + 4
L = 18 cm^2
√4²+7²-1²
√16+49-1
√65-1
√64 = 8 cm maka
8+1+7+4 = 20 cm
(4×7÷2) + (8×1÷2)
(28÷2) + (8÷2)
14 + 4 = 18 cm²
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● Materi : Luas bangun datar
● Kode Kategorisasi : 5.2.3
Jawaban:
K = 20 cm
L = 18 cm^2
Penjelasan dengan langkah-langkah:
a = √7^2 + 4^2
a = √49 + 16
a = √65 cm
b = √√65^2 - 1^2
b = √65 - 1
b = √64
b = 8 cm
Keliling
K = 4 + 7 + 1 + 8
K = 20 cm
L. Gabungan 2 Segitiga siku-siku
L = (1/2 . a . t) + (1/2 . a . t)
L = (1/2 . 4 . 7) + (1/2 . 1 . 8)
L = (2 x 7) + 4
L = 14 + 4
L = 18 cm^2
Penjelasan dengan langkah-langkah:
Mencari panjang sisi yg belum diketahui terlebih dahulu
√4²+7²-1²
√16+49-1
√65-1
√64 = 8 cm maka
Keliling
8+1+7+4 = 20 cm
Luas
(4×7÷2) + (8×1÷2)
(28÷2) + (8÷2)
14 + 4 = 18 cm²