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ioda
2 years ago
15

Your friend has locked themselves out of the house, and they need your help to get back in. They have a 15 foot long ladder, and

there is an open window 12 feet above the ground. How far from the of should you hold the ladder while they climb back in
Mathematics
1 answer:
Darina [25.2K]2 years ago
3 0

w = 9 feet far you should hold the ladder while they climb back in

Let the length be l = 15 feet and open window feet above the ground be k= 12 feet

The value of w will be given by the Pythagoras theorem,

Pythagoras theorem: In a right-angled triangle, the square of the long side is equal to the sum of the squares of the other two sides.

It is stated in this formula:

w^{2} =l^{2}- k^{2} \\\\w^{2}= 15^{2}- 12^{2} \\\\w^{2} = 225-144\\\\w^{2} = 81\\\\w=9

Hence,  w = 9 feet far you should hold the ladder while they climb back in.

Learn more about Pythagoras' theorem here https://brainly.in/question/2829237

#SPJ4

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y = - x

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5 0
3 years ago
Triangle ABC has a right angle at angle c and pounts e,d and f are midpoints. Line df = 3 and line segment ab= 10. What is the l
Leni [432]
See the attached figure.
========================
AB = 10 , FD = 3
∵ D is the midpoint of AB, and F is the mid point of CB
∴ FD // AC , FD = 0.5 AC
∵ Δ ABC is a right triangle at C
∴ FD ⊥ BC
∴ BD = 0.5 AB = 5
∴ in Δ FDB ⇒⇒ BF² = BD² - FD² = 5² - 3² = 16
∴ BF = √16 = 4
∵ F is the mid point of CB 
∴ CF = BF = 4 , and CB = 2 BF = 2*4 = 8
∵ D is the midpoint of AB, and E is the mid point of AC
∴ DE // CB  , and DE = 0.5 CB = 0.5 * 8 = 4

∴ T<span>he length of line ED is 4
</span>



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3 years ago
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Brums [2.3K]

Answer:

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Step-by-step explanation:

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It can be observed that the dot in front of 4 has been shifted in two times to the front giving us 400.3

But in the case of division,it will be two places to the left...

I hope you understand

3 0
3 years ago
Read 2 more answers
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