Answer:
The given triangle is NOT A RIGHT ANGLED triangle.
Step-by-step explanation:
Here, the given three sides of the triangle are: 11 , 15 and 20.
A. To check if the given triangle is RIGHT ANGLED or NOT
Here, the longest side = 20
So, he hypotenuse = 20
Now, if the given triangle a right angled then by PYTHAGORAS THEOREM
![(Hypotenuse)^2 = \textrm{The sum of square of other two sides}](https://tex.z-dn.net/?f=%28Hypotenuse%29%5E2%20%20%3D%20%5Ctextrm%7BThe%20sum%20of%20square%20of%20other%20two%20sides%7D)
![\implies (20)^2 = (15)^2 + (11)^2\\\implies 400 = 346](https://tex.z-dn.net/?f=%5Cimplies%20%2820%29%5E2%20%20%3D%20%2815%29%5E2%20%2B%20%2811%29%5E2%5C%5C%5Cimplies%20400%20%3D%20346)
This is a CONTRADICTION as, 400 ≠ 346
Hence the given triangle is NOT A RIGHT ANGLED triangle.
Now, we CAN NOT decide if the triangle is an Acute or Obtuse angled with the help of given sides.
For that classification, ANGLES SHOULD BE KNOWN.
DH = HF
x + 1 = 3y
y = (x + 1) ⁄ 3
GH = HE
3x – 4 = 5y + 1
y = (3x – 5) ⁄ 5
y = y
(x + 1) ⁄ 3 = (3x – 5) ⁄ 5
5x + 5 = 9x – 15
4x = 20
x = 5
y = (x + 1) ⁄ 3
y = (5 + 1) ⁄ 3
y = 2
Answer:
The answer for y=2x-4 would be...x=1/2y+2
Step-by-step explanation:
Step 1: Flip the equation.
2x-4=y
Step 2: Add 4 to both sides.
2x-4+4=y+4
2x=y+4
Step 3: Divide both sides by 2.
2x/2=y+4/2
<u>x=1/2y+2</u>
Answer:
y<-6-2x
Step-by-step explanation:
Answer:
Option :" Use distance formula to prove that the lengths of the diagonals are equal" is correct
Step-by-step explanation:
Option : Use distance formula to prove that the lengths of the diagonals are equal" is correct.
Because " By using the coordinate geometry to prove that the diagonals of the rectangle are congruent, first we have to find the lengths of the top and bottom of the rectangle and then solve it for the lengths of the diagonals by using the distance formula".