Skip to main content
Practice | SPM Add Math

SPM Additional Mathematics (KSSM)

Question
Bahasa Melayu
Rajah 1 menunjukkan sebuah bulatan berpusat $O$ dan berjejari $9$ cm. Dua jejari $OA$ dan $OB$ dilukis supaya sudut $AOB$ di pusat bulatan itu ialah $1.5$ rad. Kawasan berlorek ialah bahagian bulatan yang terletak di luar sektor $AOB$. Hitung luas kawasan berlorek itu, dalam $\text{cm}^2$, dan berikan jawapan betul kepada empat angka bererti. [Guna $\pi = 3.142$]

English
Diagram 1 shows a circle with centre $O$ and radius $9$ cm. Two radii $OA$ and $OB$ are drawn so that the angle $AOB$ at the centre is $1.5$ rad. The shaded region is the part of the circle lying outside the sector $AOB$. [Use $\pi = 3.142$] Calculate the area of the shaded region, in $\text{cm}^2$, and give your answer correct to four significant figures.
OAB1.5 rad9 cmshadedDiagram 1
[2 marks]
Preview

Tap to take a photo or choose an image

JPG or PNG accepted
Write with Apple Pencil on iPad (or finger / mouse) — the AI reads your working and grades it.
Type your answer
⌨ Math input▾
Modelled on Selangor trial · Kertas 1 · Q1

Grading your answer... please wait

Modelled on Selangor trial · Kertas 1 · Q1
Try it free — the AI marks 3 answers a day. A free account marks 30 a day. Sign up free →
📖 Input mode Study the worked solution, then try one like it. Revealed questions aren't counted. Back to practice mode
ORBIT RAISED // LEVEL UP

Level Up!

Congratulations on your progress!