+0  
 
+1
94
2
avatar+5 

1) What is the value of X?

 

https://i.imgur.com/uyRpVxN.png - picture

 

1

 

2

 

3

 

4

 

2) What is the length of AB?

 

https://i.imgur.com/BYLvIB8.png - picture

 

2

 

3

 

4

 

6

 

3) What is the value of X?

 

https://i.imgur.com/tMwxnn6.png - picture

 

4

 

4√3

 

8√3

 

16

 

4) What is the value of X?

 

https://i.imgur.com/Wh7xwaN.png - picture 

 

3

 

6

 

3√2

 

6√2

stimpay  Apr 24, 2018
 #1
avatar+91146 
+3

First one

This is an equilateral triangle....all sides are equal....so....this implies that

 

2x + 5  =  4x  - 1       add 1 to both sides, subtract 2x from each side

6  = 2x       divide both sides by 2

3  = x

 

Second one....again...we have an equilateral triangle...so...

 

5x  - 4  = 3x      add 4 to both sides....subtract 3x from both sides   

2x  = 4   divide both sides by 2

x  = 2

So  AB  =  5(2) - 4   =  6

 

 

Third one.....this is  a 30-60-90  right triangle....the hypotenuse is opposite the 90 degree angle

And the side oppposite the 30 degree angle is 1/2 of the hypotenuse

So  x  =  (1/2) *8   =  4

 

 

Last one.....this is a 45-45-90 right triangle

The side opposite the right angle  - x -  is  √2 times as long as either of the other two sides

So

x  = √2 * 6   =  6√2

 

 

cool cool cool

CPhill  Apr 24, 2018

15 Online Users

New Privacy Policy

We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive information about your use of our website.
For more information: our cookie policy and privacy policy.