Answer: 54 square feet
Step-by-step explanation:
To find perimeter of a rectangle we must use the formula l+l+w+w=p where l and w represent width and length
Since we know length and width is x=12 just substitute so
15+15+12+12=54 so 54 is the perimeter
Answer:
b=5
Step-by-step explanation:
C(1,3) and point D(4,-3)
Since we want the equation in slope intercept form we must first calculate the slope (m):

By point slope formula and using point C (1,3) we have:
So the slope is -2 and the y -intercept (b) is 5.
In the rhombus, the diagonals are perpendicular.
We know, the sum of the measures of the triangle is equal 180°.
Therefore we have the equation:

<em>combine like terms</em>

<em>subtract 75 from both sides</em>
<em>divide both sides by 5</em>

<h3>Answer: x = 21°</h3>
Answer:
the answer is either SAS or ASA because the two triangles on the outside are equal but the one in between the two equal triangles is different in size
I’m not sure what you want it rounded to
Height= 16.9913...
volume of a cone is v=1/3(pi)r^2h
So you’d do
1441.26=1/3(pi)9^2•h