The value of x is 9.
Solution:
Proportionality theorem:
<em>If a line is parallel to one side of a triangle intersects the other two sides, then it divides the two sides proportionally.</em>
In the given triangle, the middle line is parallel to the base, so the sides are in the same ratio.
![$\Rightarrow\frac{9}{72} =\frac{3x-20}{56}](https://tex.z-dn.net/?f=%24%5CRightarrow%5Cfrac%7B9%7D%7B72%7D%20%3D%5Cfrac%7B3x-20%7D%7B56%7D)
Do cross multiplication.
⇒ 9 × 56 = 72(3x – 20)
⇒ 504 = 216 x – 1440
Add 1440 on both sides of the equation.
⇒ 1944 = 216 x
Divide by 216 on both sides of the equation.
⇒ 9 = x
Switch the sides.
⇒ x = 9
The value of x is 9.
<CAD+<CDA=90
2x-y+x-1=90
3x-y=91
<CBD+<CDB=90
2x+3+y-2=90
2x+y=89
then
3x-y=91
2x+y=89
5x=180
x=36
y=17
<CDA=35
<CDB=15
Answer:
$9
Step-by-step explanation:
5 x 9 = $45
Or
9+9+9+9+9
Answer: whats the question
Step-by-step explanation:
Answer:
Its 111ft. tall if thats what your asking.
Step-by-step explanation:
100+11=111