Answer:
9.110° and y are the same(alternate angles)
thus y=110°. 110+x=180(seplementary angles). thus x=180-110=70°
z(alternate)=70°
10.y=78°. x=(180-78)=102°. z=102°
11.x=83°. y=(180-83)=97°. z=97°
12.y=37°. x=(180-37)=143. z=143°
<em>to</em><em> </em><em>confirm</em><em> </em><em>the</em><em> </em><em>answers</em><em> </em><em>all</em><em> </em><em>angles</em><em> </em><em>in</em><em> </em><em>a</em><em> </em><em>circle</em><em> </em><em>at</em><em> </em><em>the</em><em> </em><em>centre</em><em> </em><em>add</em><em> </em><em>up</em><em> </em><em>to</em><em> </em><em>3</em><em>6</em><em>0</em><em>°</em>
Answer:
16
Step-by-step explanation:
Answer:
integer and rational
Step-by-step explanation:
Answer:

Key:
• 
Step-by-step explanation:



Answer:
<h3>324 ft²</h3>
Step-by-step explanation:
We have the triangle and the rectangle.
The formula of an area of a triangle:

b - base
h - height
The formula of an area of a rectangle:

l - length
w - width
We have b = 24 ft, h = 7 ft, l = 24 ft and w = 10 ft.
Substitute:


The area of the figure:

Substitute:
