Solution:
To find the square root of 800, we will express it in terms of its prime factors.
It can be written as 800 = 2 × 2 × 2 × 2 × 2 × 5 × 5.
= 25×52
√800 = √(25×52)
= 5×22×√2
= 20√2
Hence option b is the answer.
Tags:
Maths
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