Jawaban:
B
Penjelasan dengan langkah-langkah:
9x = 117
jadi x = 13
sisi terpendek adalah 2x jadi 2×13 = 26
K = a + b + c
117 = 2x + 3x+ 4x
117 = 9x
x = 117 : 9
x = 13 cm
sisi terpendek :
= 2x
= 2(13)
= 2 × 13
= 26 cm
mencari nilai X
sudut lurus = A + B + C
180 = 2x + 3x + 5x
180 = 10x
180 : 10 = x
18 = x
nilai sudut B :
= 3x
= 3(18)
= 3 × 18
= 54°
#darari
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Jawaban:
B
Penjelasan dengan langkah-langkah:
9x = 117
jadi x = 13
sisi terpendek adalah 2x jadi 2×13 = 26
nomor 1 :
K = a + b + c
117 = 2x + 3x+ 4x
117 = 9x
x = 117 : 9
x = 13 cm
sisi terpendek :
= 2x
= 2(13)
= 2 × 13
= 26 cm
nomor 2 :
mencari nilai X
sudut lurus = A + B + C
180 = 2x + 3x + 5x
180 = 10x
180 : 10 = x
18 = x
nilai sudut B :
= 3x
= 3(18)
= 3 × 18
= 54°
#darari