Question

Find the distance between the following points: A(a,b) and B(2a,2b).​

Answer 1

√(a² + b²)

Explanation:

using distance formula:

distance = √((Δx)² + (Δy)²)

Δx is a (2a - a), Δy is b (2b - b):

therefore the distance is √(a² + b²)