Page 62 - Hybrid PBD 2021 Form 2 - Matematik

Matematik Tingkatan 2 Bab 3
7. (a) Lengkapkan jadual di bawah. (ii) Jika nilai y ialah RM2, hitung nilai x.
Complete the following table. If the value of y is RM2, calculate the value of x.
[2 markah/ 2 marks] [2 markah / 2 marks]
Jawapan/ Answer : Jawapan / Answer :
16x + 6(2) = 36
Ungkapan Perkara rumus 16x + 12 = 36
algebra Subject of the formula 16x = 36 – 12
Algebraic expression
16x = 24
(i) k + 5 = H H x = RM1.50
2
(ii) L = 4pj 2 L

(b) Jamie mempunyai sekeping foto seperti
+
h
i
(b) Diberi  2 = g + 2. Tandakan (✓) ditunjukkan dalam rajah di bawah. Panjang
5 foto ini adalah 4.5 cm lebih daripada
bagi pernyataan yang betul dan (✗) bagi lebarnya. KBAT Mengaplikasi
pernyataan yang salah. Jamie has a photo as shown in the diagram below. The
 2 length of the photo is 4.5 cm longer than the width.
h + i
Given 5 = g + 2. Mark (✓) against the correct
statement and (✗) against the incorrect statement.
[2 markah/ 2 marks]
Jawapan/ Answer :
(i) y
h = 600, jika i = 5 dan g = 3
h = 600, if i = 5 and g = 3 ✓

(ii) g = 5, jika h = 20 dan i = 5
g = 5, if h = 20 and i = 5 ✗ (i) Bentukkan satu rumus algebra bagi
perimeter foto tersebut.
Form an algebraic formula for the perimeter of the
Bahagian c photo. [2 markah/ 2 marks]
Jawapan/ Answer :
8. (a) Jadual di bawah menunjukkan harga dua Perimeter foto
jenis buah-buahan. Perimeter of the photo
The table below shows the prices of two types of fruits. p = (2 × y) + 2(y + 4.5)
p = 4y + 9
Buah A Buah B
Fruit A Fruit B
RM8x / kg RM2y / kg
(ii) Berapakah luas foto jika perimeter, p
Edwin membeli 2 kg buah A dan 3 kg buah B ialah 69 cm?
dengan harga RM36. What is the area of the photo if the perimeter is
Edwin bought 2 kg of fruit A and 3 kg of fruit B for RM36. 69 cm?
[4 markah/ 4 marks]
(i) Berdasarkan situasi di atas, tulis suatu
ungkapan algebra yang mewakili Tip KBATKBAT
KBAT
jumlah harga buah-buahan yang dibeli Cari nilai y kemudian hitung luas gambar.
oleh Edwin. Find the value of y then calculate the area of the photo.
Based on the situation above, write an algebraic
expression that represents the total price of fruits Jawapan/ Answer :
bought by Edwin. p = 4y + 9
[2 markah / 2 marks]
Jawapan / Answer : 69 = 4y + 9
2(8x) + 3(2y) = 36 4y = 69 – 9
60
16x + 6y = 36 y = 4
y = 15 cm

Luas foto/ Area of photo = (15)(15 + 4.5)
= 292.5 cm
2

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Bab 3.indd 35 9/3/21 5:14 PM