Question

Three Boy Scout would like to put up a tent in account their problem is they are in need of a row that will connect the top of the tent pole 5m high to the peg on the ground 3.5m from the foot of the pole. what is the required length of the rope?​

need ko po solutions..​

Answer 1

Answer:

We can visualise it being a right angled triangle.

here, altitude= height of pole=5m

base=length from the foot of the pole to where rope is to be connected=3.5m

and hypotenuse= length of the rope itself.

By pythogoras theorem,

$altitude^{2} + base^{2} = hypotenuse^{2}$

so,we need to find the hypotenuse.

thus,$hypotenuse=\sqrt{base^{2}+ altitude^{2} }$

                         

$\sqrt{25+12.25}$=$\sqrt{37.25}$=6.1m

so, length of the rope is 6.1m

Hope it helps!!!

Answer 2

Step-by-step explanation:

Let y = 100

Then reduction = 20% = 20

Then x = 100 – 20 = 80

(i)x/y = 80/100 = 4/5 (Diving by 20)

(ii) (y – x)/y = (100 – 80)/100

= 20/100

= 1/5 (Dividing by 20)

(iii) x/(y – x)

= 80/(100 – 80)

= 80/20

= 4/1 = 4 (Dividing by 20)