Question

The length breadth and height of a cuboid is 45cm , 85cm,115cm . find the length of the longest tape which can measure the three dimensions exactly

Answer 1

Given :

• Length = 45cm
• Breadth = 85cm
• Height = 115cm

To find :

• Length of longest tape , which can measure given 3 dimensions exactly

Method used :

• Longest tape's length will be the HCF of given dimensions

Solution :

45 = 3×3×5

85 = 5×17

115 = 5× 23

Highest Common factor of 45 , 85, & 115 = 5

so length of longest tape = 5cm

ANSWER : 5cm