Question

Find the Volume and TSA of a Cuboid of edges 12cm. 8m and 7m.​

Answer 1

Answer:

Step-by-step explanation

Area of cuboid=2(12/100×8+8×7+7×12)

=2(24/25+1400/25+21/25)

=2(1445/25)

=57.8×2

=115.6 m²

Volume= 12/100 × 8 × 7

=672/100

=6.72 m³Ans

Answer 2

Given :

• The Length of Cuboid = 12 cm
• The Breadth of Cuboid = 8 m
• The Height of Cuboid = 7 m

To find :

• the volume and TSA of the cuboid.

Solution :

⇒ Let's find the Volume of cuboid.

➵ 12 cm to m :

1 m = 100 cm

12 cm = 12/100

= 0.12 cm

→ Volume of Cuboid = l × b × h

→ Volume of Cuboid = 0.12 × 8 × 7

→ Volume of Cuboid = 0.12 × 56

→ Volume of Cuboid = 6.72

• Therefore, the volume of cuboid is 6.72 m².

⇒ Let's find the Total Surface of the Cuboid.

→ Total Surface Area = 2 (lb + bh + lh)

= 2 (0.12 × 8 + 8 × 7 + 0.12 × 7)

= 2 (0.96 + 56 + 0.84)

= 2 (57.8)

= 2 × (57.8)

= 115.6 m²

• Therefore, the TSA of the Cuboid is 115.6 m².