Answer:
The first step is
Take the square root of both sides of the equation
Step-by-step explanation:
we have

Solve for x
step 1
Take square root both sides

the solutions are
and 
therefore
The first step is
Take the square root of both sides of the equation
The answer is 19.6 cm^2
you should find the height of the triangle by heron formula: it will be 9.8
so the area is

good luck
Area of <span>parallelogram=base * height
so it is 12*9=108 yd²</span>
I thinks it C, this a difficult question but idk, that my closest guess...
Answer:
Option B, 1
Step-by-step explanation:
tan 45° = 1/1 = 1