H3lv1
L persegi = s x s = 20 x 20 = 400 L 1/2 lingkaran = 1/2 x 3,14 x 10 x 10 = 1/2 x 314 = 157 L segitiga = 1/2 x a x t = 1/2 x 20 x 6 = 10 x 6 = 60 L persegi - ( L 1/2 lingkaran + L segitiga ) 400 - ( 157 + 60 ) 400 - 217 = 183 Keliling persegi = 2 x ( 20 + 20 ) = 2 x 40 = 80 Keliling Segitiga = 20 + 13 + 13 = 46 Keliling 1/2 lingkaran = 1/2 x 3,14 x 20 = 31,4 80 - ( 46 + 31,4 ) 80 - 77,4 = 2,6 Semoga bermanfaat
= 20 x 20 = 400
L 1/2 lingkaran = 1/2 x 3,14 x 10 x 10
= 1/2 x 314 = 157
L segitiga = 1/2 x a x t
= 1/2 x 20 x 6 = 10 x 6 = 60
L persegi - ( L 1/2 lingkaran + L segitiga )
400 - ( 157 + 60 )
400 - 217
= 183
Keliling persegi = 2 x ( 20 + 20 ) = 2 x 40 = 80
Keliling Segitiga = 20 + 13 + 13 = 46
Keliling 1/2 lingkaran = 1/2 x 3,14 x 20 = 31,4
80 - ( 46 + 31,4 )
80 - 77,4
= 2,6
Semoga bermanfaat