Question

find the total surface area of cubes having the following sides? 1)3cm 2) 5 cm 3)7.2 4) 6.8 cm 5)5.5 6)9.5

Answer 1

(1) Given, a = 3 cm

TSA = 6a square

= 6 × 3 × 3 = 54 cm square

(2) Given, a = 5 cm

TSA = 6a square

= 6 × 5 × 5 = 150 cm square

(3) Given, a = 7.2 cm

TSA = 6a square

= 6 × 7.2 × 7.2 = 311.04 cm square

(4) Given, a = 6.8 cm

TSA = 6a square

= 6 × 6.8 × 6.8 = 277.44 cm square

(5) Given, a = 5.5 cm

TSA = 6a square

= 6 × 5.5 × 5.5 = 181.5 cm square

(6) Given, a = 9.5 cm

TSA = 6a square

= 6 × 9.5 × 9.5 = 541.5 cm square

Answer 2

Answer:

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Step-by-step explanation: