Answer:
864 in^2
Step-by-step explanation:
Area of triangle
15 x 18 x 1/2 = 135
Area of Square
18 x 18 = 324
There are 4 triangles so...
135 x 4 = 540
Therefore the area is
540 + 324 = 864
X=Since you have an angle, a hypotenuse, and the opposite side, we can use:
sin(x)=opposite/hypotenuse
sin(60)=x/8 (cross multiply)
sin(60)*8=x
√3/2*8=x
x=8√3/2
x=4√3 so the answer is B
Hope this helps
In terms of b-----
3a+6b=d
6b=d-3a
b=d-3a/6
In terms of d-------
3a+6b=d
d=3a+6b
Use the Pythagorean theorem to find X
A² + B² = C²
X² + 4² = 5²
X² = 5² - 4²
X² = 25 - 16
X² = 9
.: X = 3