This document discusses calculating the surface area and volume of various 3D shapes. It provides examples of calculating the surface area of combined 3D shapes by adding the individual surface areas. It also shows working to calculate the height of a pyramid given its base area and total surface area. Finally, it mentions calculating the volume of 3D shapes.

1. 6.3 : Luas permukaan
bentuk 3 dimensi

2. Hitung jumlah luas permukaan bagi bentuk 3
dimensi berikut :

7. BENTUK 3 DIMENSI
YANG BERGABUNG

8. Contoh:

9. SOALAN:
Jwp : 402.29 𝑐𝑚2

10. Jwp:1600
Luas permukaan gabungan
= 5 x ( 16x16) + 4 x ( x16 x 10 )
= 5 x (256) + 4 x (80)
= 1280 + 320
= 1600
1
2

11. 𝐽𝑤𝑝 ∶ 858 𝑐𝑚2

12. Penyelesaian masalah

13. Penyelesaian:
Luas piramid = Luas kon
(pxl) + 4(1/2 x tapak x tinggi) = 𝜋𝑗2 + 𝜋js
(10 x 10) + 4 (1/2 x 10 x tinggi) = (3.142 x 5 x 5) + (3.142 x 5 x 13)
100 + 4(5 x t)= 78.55 + 204.23
100 + 20t = 282.78
20t = 282.78 – 100
t = 182.78 ÷ 20
t = 9.14 cm
𝑆2
= 122
+ 52
= 144 + 25
= 169
S = √ 169
=

14. ISIPADU BENTUK 3 DIMENSI
Hitung isipadu bentuk 3 dimensi berikut: