If the two triangles are similar you can use a proportion to solve for the length of the legs.
=
Now, you would cross multiply to get
4x=18
Now, you simplify that using the division property of equality.
You end up with
x=4.5
Therefore, the legs of the triangle with a base of 9 inches will each be 4.5 units long.
Your original answer was correct...
Both polygons have five sides, and five sided polygons are called pentagons.
Slope and y-intercept section:
<em>2. y=2x-2</em>
<em>Slope: 2</em>
<em>Y-intercept: -2</em>
<em>4. y=-x+3</em>
<em>Slope: -1</em>
<em>Y-intercept: 3</em>
<em>6. y=-1/3x+4</em>
<em>Slope: -1/3 (negative one third)</em>
<em>Y-intercept: 4</em>
<em>8. y+4x=2</em>
<em>Slope: -4</em>
<em>Y-intercept: 2</em>
Graphing section:
<em>y=mx+b where m = slope and b = y intercept</em>
<em>10. Graph a line with the slope of 1 and y-intercept of -4</em>
<em>slope form: y=1x+-4 </em>
<em>(first picture)</em>
<em>12. Graph a line with a slope of 1/3 and a y-intercept of 1.</em>
<em>slope form: y=1/3x+1</em>
<em>(second picture)</em>
<em>14. Graph y=3x-3</em>
<em>(third picture)</em>
<em>16. Graph y=4x-2</em>
<em>(fourth picture)</em>
<em>18. Graph y=2/3x-3</em>
<em>(fifth picture)</em>
Hope this helps! Please don't hesitate to ask any questions.
The area would be 3x^2+4x *3 which is equal to 39x :)
