Question

Need help on geometry please someone ....

Answer 1

idk the first one but the second is 5.29,and the last is not here

Answer 2

1. Remember that the converse of the Pythagorean theorem says that if the square of the longest side of a triangle is equal to the sum of the squares of its smaller side, the triangle is a right one:
We know from our problem that the longest side is 106, and the smaller sides are 56 and 90, so:

`106^2=56^2+90^2`

`11236=3136+8100`

`11236=12236`

We can conclude that our triangle is a right triangle. The correct answer is the first choice: right

2. First, we are going to find
`y` using the fact that the two triangles are similar:

`(7)/(y) = (y)/(4)`

`y^2=28`

`y= √(28)`

Next, we are going to use the Pythagorean theorem to find
`x`:

`x^2= 4^2+( √(28) )^2`

`x^2=16+28`

`x^2=44`

`x= √(44)`

`x=6.63`

We can conclude that the correct answer is the third choice: 6.63

3. To solve this, we are going to use the Pythagorean theorem one more time. We know that the longest side of our triangle is 25, and the shorter sides are 7 and
`x`, so:

`25^2=7^2+x^2`

`625=49+x^2`

`x^2=576`

`x= √(576)`

`x=24`

We can conclude that the correct answer is the first choice: 24