Question

Tinggal 3 lagi mohon bantuannya para jenius?




#gemar_membantu

Answer 1

Materi garis singgung lingkaran
Kelas 8

5) Dik : 
R = 10 cm
r = 2 cm
d = 17 cm
Dit : gspl
Jawab :
gspl = √d²-(R-r)²
gspl = √17²-(10-2)²
gspl = √289 - 64
gspl = √225
gspl = 15 cm (c)

6) Dik :
R = 7 cm
r = 5 cm
d = 15 cm
Dit : gspd ?
Jawab : 
gspd = √d²-(R+r)²
gspd = √15²-(7+5)²
gspd = √225- 144
gspd = √81
gspd = 9 cm (b)

7) Dik : 
d = 17 cm
R = 13 cm
r = 5 cm
Dit gspl
gspl = √d²-(R-r)²
gspl = √17²-(13-5)²
gspl = √289 - 64
gspl = √225
gspl = 15 cm (a)

Mohon maaf apabila ada kesalahan