Question

Tolong bantu jawab kak​
Besok mo di kmpulin

Answer 1

Jawaban:

33. C

34. D

35 47 cm2 ( tdk ada jwban yg sesuai)

36. C

Penjelasan dengan langkah-langkah:

33. L = 1/2 × phi x r^2 = 1/2 × 3.14 × 1 = 1.57

34. L =( 1/2 lingkaran besar) - (2x1/2 lingkaran kecil)

= (1/2 x phi x r^2) - (phi × r^2)

= (1/2 × 22/7 × 7 x 7) - (22/7 × 3.5 x 3.5)

= (11 x 7) - (11 × 3.5)

= 11 x 3.5 = 38.5

35. tembereng = (L juring - luas segitiga)

Luas juring = 1/4 × phi x r^2 = 1/4 × 3.14 x 100 = 73.5

luas segitiga = 1/2 × 10^2 = 50

luas tembereng = 23..5

luas 2 tembereng = 47

36. = (1/4 phi ×r^2 )- (1/4 phi xr^2)

= (1/4 × 3.14 x10^2 ) - (1/4 × 22/7 × 7 x 7)

= (1/4 × 314)- (1/4 × 154)

= 1/4 × 160

= 40