gr9-3rd-Test-www.eduLanka.lk

wjidk jdr mÍlaIKh - 2013
.Ks;h - 9 jir
^i fldgfia m%YaK ish,a,guo ii fldgiska m

S
(02)
ir, odrh yd ljlgqj muKla Ndú;d lr ks¾udK f¾Ld meyeÈ,sj olajñka my; i|yka ks¾udKh lrkak
i. 7.2 cm la È. ir, f¾Ldjla we| th AB f,i kï lrkak.
^
0
ii. BAC = 60 la o AC mdoh 5 cm la o jk fia ABC;s%fldaKh ks¾udKh lrkak.
iii. ACB fldaKfha w.h uek ,shkak
iv. AB yd BC mdoj,g iu ÿßka .uka lrk ,laIhkaf.a m:h ks¾udKh lrkak.
v. AC mdoh yuqjk ,laIh x f,i kï lrkak.
vi. AX ys È. uek ,shkak
(03)
y = 3x iólrKhg .e,fmk w.h j.=jla my; oelafõ.
x
y
-2 -1 0 1 2
i. j.=fõ ysia;eka mqrjkak.
ii. j.=fjka ,nd.; yels mámdá.; hq.,a my ,shd olajkak
iii. tu mámdá.; hq.,a LKavdxl ;,hla u; ,l=Kq lr y = 3x iólrKfhka oelafjk m%ia:drh w¢kak.
iv. y = 3x f¾Ldjg iudka;rj (0, -3) ,laIh yryd .uka lrkakd jQ ir, f¾Ldfõ iólrKh ,shkak
v. tu iólrKfha wkql%uKh yd wk;#LKavh fidhkak.
(04)
mqoa.,hl=f.a udisl jegqm remsh,a 2300 ls. jd¾Islj th remsh,a 3000 la ne.ska jeäfõ.
i. uq,a jir y;frys udisl jegqmaj, w.hka ,shd olajkak.
ii. n jk jif¾ udisl jegqm .Kkh lsÍu i|yd fmdÿ iQ;%hla f.dvk.kak.
iii. by; iq;%h weiqfrka Tyqf.a fiajd ld,h jir 5 la jk úg udisl jegqfma jákdlu fidhkak.
iv. Tyq remsh,a 44 000 l jegqmla ,nkafka wdrïNfha isg lSfjks jif¾ o @
(05)
i. iq¿ lrkak.
3 4
(
2 1
)
5
^w&
2 x 1
^wd& 2 - 1 x
4 5
3 4 6
ii. rn¾ fnda,hla 300 cm la isg iu;

11 fldgi
(01)
m