Figure A
1 answer:
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Answer:
The length of the hallway is 10 m.
Step-by-step explanation:
Given:
Time taken to cover 1 km = 2.5 hours
Distance covered in 2.5 hours = 1 km
Therefore, speed of robot =
Now, speed is constant.
Now, time taken to cover the length of hallway = 90 s
Speed of the robot = 0.4 km/h
Converting 0.4 km/h to m/s, we multiply by the factor . This gives,
Now, distance of the hallway is equal to the product of speed and time. So,
Distance of hallway = Speed Time
Distance of hallway =
Therefore, the length of the hallway is 10 m.
Answer:
106.4622
Step-by-step explanation:
Given the information:
- A right triangle
- Leg lengths of
and
Use the pytagon theory to find the hypotenuse of the triangle
<=>
<=>
<=>
Take the square root of both sides
<=> c = 69.4622
=> expression in simplest form for the perimeter of a right triangle is:
+
+ 69.4622
= 27 + 64
+ 69.4622
= 106.4622