Page 65 - Steady Mate Tg1 - Book B

BAB
10 Perimeter dan Luas
Perimeter and Area

Perimeter
10.1 Perimeter BUKU TEKS ms. 226 – 230

MESTI TAHU & INGAT
Perimeter ialah jumlah panjang sisi yang mengelilingi suatu kawasan tertutup.
Perimeter is the total length around an enclosed area.

A Tentukan perimeter bagi setiap bentuk yang berikut. Gunakan benang untuk ukuran garis lengkung jika perlu.
Determine the perimeter of each of the following shapes. Use a thread to measure the curve if necessary. TP 2 ARAS R
Contoh 1. 2.
5 cm
2 cm
3 cm
6 cm 3 cm
8 cm
4 cm
Perimeter Perimeter
Perimeter = 5 + 5 + 8 + 3 + 3
= 6 + 4 + 4 + 3 + 2 + 3 + 4 = 24 cm = 1.6 + 2.8 + 1.6 + 2.8
= 26 cm = 8.8 cm

B Selesaikan masalah berikut. TP 4 ARAS R
Solve the following problems.

Contoh 1. Rajah di sebelah 6 m
James mempunyai sebidang tanah 6 m menunjukkan pelan 4 m
taman permainan
seperti yang ditunjukkan dalam rajah 3.5 m di sebuah kawasan
di sebelah. Dia ingin memasang perumahan. 3.5 m
pagar di sekeliling tanahnya. Jika kos The diagram shows the
pemasangan pagar ialah RM45 semeter, 4 m 5 m plan of a playground in 2 m
berapakah kos pemasangan pagar itu? a residential area.
James has a piece of land as shown in the Tukang kebun ingin menanam bunga di sekeliling
diagram. He wants to fence around the taman permainan. Jika kos menanam bunga ialah RM38
land. If the cost of fencing is RM45 per semeter, berapakah kos menanam bunga itu?
metre, how much is the cost of fencing?
The gardener wants to plant flowers around the playground. If
the cost of planting flowers is RM38 per metre, how much is
Perimeter = 6 + 3.5 + 4 + 5 + 5 + 4 + 3.5 the cost of planting flowers?
= 31 m
Perimeter = 6 + 4 + 4 + 2 + 2 + 3.5 + 3.5
Kos/ Cost = 31 × RM45 = 25 m
= RM1 395 Kos/ Cost = 25 × RM38
= RM950

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