" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
= v225 - 81
= v144
= 12 cm
( v = akar , ^ = pangkat)
(s = keliling 1/2 lingkaran)
s = 1/2 ( AB + BC + CA )
= 1/2 (9 + 15 +12)
= 1/2 (36)
= 18 cm
Ls = luas segitiga
Ls = 1/2 × alas × tinggi
= 1/2 × 9 × 12
= 54 cm^2 (kuadrat)
(r = jari2 lingkaran)
r = Ls / s
= 54 / 18
= 3 cm
(Ll = luas lingkaran)
(£ = phy)
Ll = £ × r × r
= 3,14 × 3 x 3
=28,26 cm^2
(La = Luas yg diarsir)
La = Ls - Ll
= 54 - 28,26
= 25,74 cm^2
= v225 - 81
= v144
= 12 cm
( v = akar , ^ = pangkat)
(s = keliling 1/2 lingkaran)
s = 1/2 ( AB + BC + CA )
= 1/2 (9 + 15 +12)
= 1/2 (36)
= 18 cm
Ls = luas segitiga
Ls = 1/2 × alas × tinggi
= 1/2 × 9 × 12
= 54 cm^2 (kuadrat)
(r = jari2 lingkaran)
r = Ls / s
= 54 / 18
= 3 cm
(Ll = luas lingkaran)
(£ = phy)
Ll = £ × r × r
= 3,14 × 3 x 3
=28,26 cm^2
(La = Luas yg diarsir)
La = Ls - Ll
= 54 - 28,26
= 25,74 cm^2
Jawabannya Benar ini.