Question

. A man travels 7 km due north, then goes 3 km due
east and then 3 km due south. How far is he from
his starting point ?​

Answer 1

Answer:

In ΔAOB,O is right angle.

∴ Applying Pythogorus theorem,

(AB)

2

=(OB)

2

+(OA)

2

=9+16

(AB)

2

=25

AB=5

∴ He is 5km from starting point.

Answer 2

Step-by-step explanation:

In ΔAOB,O is right angle.

∴ Applying Pythogorus theorem,

(AB)²=(OB)² +(OA)²

=9+16

(AB)² =25

AB=5

∴ He is 5km from starting point.