12 Shades of Breast Cancer: Our Story, Our Way

12 Shades of Breast Cancer: Our Story, Our Way

Matematika tolong bantu di kasih cara plizzz​

tolong bantu di kasih cara plizzz​

29. D

30. D

41. 4 : 9

Penjelasan dengan langkah-langkah:

29. x = 70°

y = 180 - 130

= 50°

x + y = 70° + 50° = 120°

30. skala 1 : 1000

1 cm = 1000 cm

= 10 m

p = 3,5 cm = 3,5 x 10 m = 35 m

l = 2,2 cm = 2,2 x 10 m = 22 m

L = p x l

= 35 m x 22 m

= 770 m²

31. (R + r)² = 13² - 12²

(3 + r)² = 169 - 144

= 25

3 + r = √25

= 5

r = 5 - 3 = 2 cm

L.p : L.o = r² : R²

= 2² : 3²

= 4 : 9

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