need help with a story problem involving pythagorean theorem (see below)

Question

A reporter in a helicopter is hovering above a building at a height of 200 meters. Two hundred meters away from the foot of the building is a fire that the reporter is photographing. How far away is the reporter from the fire?

Answer 1

200(sqr2) = about 200(1.414) = 282.8 meters

It's a right triangle, with sides 200 by 200

the hypotenuse = square root of 200^2 + 200^2

= 200(sqr2) = about 282.8 meters