Interactive practice questions
The screen on a handheld device has dimensions $9$9 cm by $5$5 cm, and a diagonal of length $x$x cm.
What is the value of $x$x?
Round your answer to two decimal places.
Brad’s car has run out of gas. He walks $24$24 km west and then $10$10 km south looking for a gas station.
If he is now $h$h km directly from his starting point, find the value of $h$h.
David and Neville are playing football together. At one point in the game, they are near the same corner of the field. David is on the goal line, $11$11 m away from the corner, while Neville is on the side line, $17$17 m away from the corner.
If the straight line distance between the two players is $d$d m, find the value of $d$d, rounding your answer to two decimal places.
A movie director wants to shoot a scene where the hero of the film fires a grappling hook from the roof of one building to the roof of another.
If the first building is $37$37 m tall, the other building is $54$54 m tall and the street between them is $10$10 m wide, what is the minimum length $l$l of rope needed for the grappling hook?
Round your answer to two decimal places.