1. 3 1/2 + 4/5 × 10/13=

Jawaban:

1. 4 3/26

2. Luas = 616 CM²

keliling = 88 cm

Penjelasan dengan langkah-langkah:

1. 3 1/2 + ( 4/5 × 10/13 )

= 7/2 + ( 4/5 × 10/13)

= 7/2 + 40/65

= 455/130 + 80/130

= 535/130

= 4 15/130

= 4 3/26

2. Diameter =28 cm

Jari². = 14 cm

Luas = π × r²

= 22/7 × 14 cm²

= 22/7 × 196 cm

= 4.312/7 cm

= 616 cm²

Keliling= π × d

= 22/7 × 28 cm

= 616/7 cm

= 88 cm

semoga membantu:)

#sejutapohon