Question

find volume,lateral surface area and the total surface area of the cubiod whose dimension are :- length 15m , breadth 6m, height 9dm

Answer 1

Answer:37.8msquare,217.8msquare

Step-by-step explanation:

Answer 2

Answer:Solution :

Let us assume , 5 + √3 is rational.

Let 5 + √3 = a/b , where a,b are

integers and b ≠ 0.

√3 = a/b - 5

=> √3 = ( a - 5b )/b

Since , a , b are integers , (a-5b)/b is

rational , and so √3 is rational .

This contradicts the fact that √3 is

irrational .

Hence , 5 + √3 is irrational.

Step-by-step explanation: