Question

Tolong di jawab ya,makasih

Answer 1

1/5×22/7×28×28= 492,8

1/5×22/7×14×14= 123,2

492,8-123,2= 369,6

kel= 1/5×22/7×28=17,6

1/5×22/7×56=35,2

17,6+35,2+14+14= 80,8

Answer 2

Luas arsir
= 72/360 x 22/7 x 28² - 72/360° x 22/7 x 14²
= 492,8 - 123,2
= 369,6cm²