5dregensleyer
Luas arsir luas = luas persegi - luas ssegitiga - luas 1/2 lingkaran = ( s x s) - ( 1/2 x a x t) - ( π x r²) = ( 20 x 20 ) - ( 1/2 x 20 x 8) - ( 3,14 x 10 x 10) = 400 - 80 - 310 = 6 cm²
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habibaasma
Persegi 20 x 20 =400 segitiga 1/2 x 8x 20 = 80 Lingkaran 3,14 x 10x 10 314
luas = luas persegi - luas ssegitiga - luas 1/2 lingkaran
= ( s x s) - ( 1/2 x a x t) - ( π x r²)
= ( 20 x 20 ) - ( 1/2 x 20 x 8) - ( 3,14 x 10 x 10)
= 400 - 80 - 310
= 6 cm²
20 x 20
=400
segitiga
1/2 x 8x 20
= 80
Lingkaran
3,14 x 10x 10
314
total 400 -(314+80)
400 - 394
= 6 cm