101 Blue Ribbon Dessert Recipes (101 Cookbook Collection)

101 Blue Ribbon Dessert Recipes (101 Cookbook Collection)

Matematika Sekolah Menengah Atas pllssss kaka buruann​

pllssss kaka buruann​

Penjelasan dengan langkah-langkah:

GARIS DAN SUDUT

2a + 4a = 180 – 30

6a = 150

a = 150

6

a = 25°

3c = 6a

c = 6a

3

c = 2×25

c = 50°

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