Answer:
Third side = 8.34 cm
Step-by-step explanation:
Given that,
The perimeter of a triangle, P = 22 cm
One side of a triangle, b = 9 cm
The area of the triangle, A = 20.976 cm²
The formula for the area of a triangle is given by :
Perimeter = Sum of all sides
9 cm + 4.66 cm + x = 22
x = 22 - 13.66
x = 8.34 cm
So, the third side of the triangle is 8.34 cm.
Answer:
D) 45 ft
Step-by-step explanation:
The two triangles are shown below.
Given:
BC = 60 ft, CD = 24 ft and DE = 18 ft.
Since, the two triangles are similar, their corresponding sides are in proportion.
So, 
Now, consider the proportion of sides,
Therefore, the distance between A and B is 45 ft.
Opposite sides in a parallelogram are equal
So,
XY=WZ
3a-4=a+2
2a=6
a=3
XW=YZ
b+1=2b
b=1
Table:
<span>Years (x) 1 2 3 4 5 6
Money (y) (hundreds of dollars) 15 30 45 60 75 90
</span>
y = 15(x)
y = 15(9)
y = 135 hundreds of dollars
<span>y = 15x, in 9 years he will have saved $13,500</span>
