Jawaban:
L segitiga = 1/2 × a × t
1. a. L = 1/2 × 10 × 8
L = 5 × 8
L = 40 cm²
b. L = 1/2 × 16 × 15
L = 8 × 15
L = 120 cm²
c. L = 1/2 × 17 × 16
L = 8,5 × 16
L = 136 cm²
2. a. 225 = 1/2 × 25 × t
225 = 12,5 × t
t = 225 ÷ 12,5
t = 18 cm
b. 108 = 1/2 × a × 12
108 = 6 × a
a = 108 ÷ 6
a = 18 cm
c. 24 = 1/2 × a × 8
24 = 4 × a
a = 24 ÷ 4
a = 6 cm
Penjelasan dengan langkah-langkah:
Semoga membantu❤
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Jawaban:
L segitiga = 1/2 × a × t
1. a. L = 1/2 × 10 × 8
L = 5 × 8
L = 40 cm²
b. L = 1/2 × 16 × 15
L = 8 × 15
L = 120 cm²
c. L = 1/2 × 17 × 16
L = 8,5 × 16
L = 136 cm²
2. a. 225 = 1/2 × 25 × t
225 = 12,5 × t
t = 225 ÷ 12,5
t = 18 cm
b. 108 = 1/2 × a × 12
108 = 6 × a
a = 108 ÷ 6
a = 18 cm
c. 24 = 1/2 × a × 8
24 = 4 × a
a = 24 ÷ 4
a = 6 cm
Penjelasan dengan langkah-langkah:
Semoga membantu❤