1. CUBECUBE and CUBOIDCUBOID To calculate the volume and surface area of cube and cuboid Created by Cep Andi Alim Subarkah for mathlabsky.wordpress.com

2. A B C D E H F G r cm The Volume The Surface Area

3. Given the measure edges of a cube is 5cm. Calculate a. The length of diagonalc. The surface area b. The volume Answer:

5. Given a cube has surface area is 150cm 2. Calculate a. The length of face diagonalb. The Volume Answer:

6. A B C D E H F G l cm w cm h cm The Volume The Surface Area

7. Given a cuboid has measurement 6cm x 4cm x 7cm. Calculate: a. Length of diagonalc. The volume b. The surface area Answer: b. S.A= 2(l.w + l.h + w.h) = 2(6x4 + 6x7 + 4x7) = 2(24 + 42 + 28) = 2(94) = 118 cm 2 c. Vol= l x w x h = 6 x 4 x 7 = 168 cm 3

8. Given a cuboid has measure edges of based is 5cm x 4cm, and the sum of edges is 68 cm. Calculate: a. The volumeb. The surface area Answer: S.O.E= 68 cm 4 (l + w + h)= 68 4 (5 + 4 + h)= 68 4 (9 + h)= 68 9 + h= 68 : 4 = 17 h= 17 – 9 = 8 cm a. Vol= l x w x h = 5 x 4 x 8 = 160 cm 3 b. S.A= 2(l.w + l.h + w.h) = 2(5x4 + 5x8 + 4x 8) = 2(20 + 40 + 32) = 2 (92) = 184 cm 2

9. Given a cuboid has measure edges of based is 5cm x 8cm, and the surface area is 184cm 2. Calculate: a. The volumeb. The length of diagonal Answer: The Surface Area = 184 2(l.w + l.h + w.h) = 184 2(5x8 + 5xh + 8xh) = 184 40 + 5h + 8h = 184 : 2 = 92 13h = 92 – 40 = 52 h = 52 : 13 = 4 cm a. Vol= l x w x h = 5 x 8 x 4 = 160 cm 3