A 12-foot ladder is leaning against a wall. The bottom of the ladder is 5 feet away from the bottom of the wall.

Approximately how high up the wall does the top of the ladder reach?

Question

A 12-foot ladder is leaning against a wall. The bottom of the ladder is 5 feet away from the bottom of the wall. 


Approximately how high up the wall does the top of the ladder reach?

anonymous · Answer

A.
2.4 feet
 
 B.
7.0 feet
 
 C.
13.0 feet
 
 D.
10.9 feet

jhannybean · Answer

Use special right triangles for this.

anonymous · Answer

What do you mean?

jhannybean · Answer

|dw:1426512980430:dw|

jhannybean · Answer

For any right triangle, you can use pythagorean theorem: $c^2 = a^2+b^2$ where c is the hypotenuse (ladder in your case) and a and b are the legs of the triangle, (the wall and the distance from the wall)

anonymous · Answer

A boat leaves Port A and travels due east. Port B is 15 mi due north of Port A, and Port C is 24 mi due south of Port A. The boat is 25 mi from Port C.
 
How far is the boat from Port B? Round to the nearest tenth of a mile.

anonymous · Answer

____mi

jhannybean · Answer

Please open another thread if you have more questions.

anonymous · Answer

Ok