Answer:
The value of
= 
Step-by-step explanation:
Vertical Angle theorem: It is about the angles that are opposite to each other.
Also, vertical angle are congruent that means vertical angles are equal.
In the given figure;
and
are vertical angle
then, by vertical angle theorem,
.
Supplementary angle: the sum of the angles whose measure on the straight line is 180 degree.
From the figure,
,
and
forms a straight line.
then, by the definition of Supplementary angle;

Substituting the value of
in above equation:
or

Simplify:

therefore,
and
,
the value of
.
Answer:
B
Step-by-step explanation:
Answer:
8:12
Step-by-step explanation:
2+3 = 5
20 div 5 = 4
2 times 4 = 8
3 times 4 =12
8:12
Answer:
hope this answer will help u.
Step-by-step explanation:
<em>( 5x + 3y )² - ( 5x - 3y )² - 60xy</em>
<em>= ( 25x² + 30xy + 9y²) - ( 25x² - 30xy + 9y² ) - 60xy</em>
<em>= 25x² + 30xy +9y² - 25x² + 30xy - 9y² - 60xy</em>
<em>= 60xy - 60xy</em>
<em>= 0</em>
If the diameter of the garden is 12 ft, then the radius is 6 ft.
The area is then π(6 ft)^2, or 36 ft^2.
Then the area of one of the 8 equal sections of the garden is 36/8 ft^2, or 9/2 ft^2, or 4.5 ft^2.