8÷2 (2+2)=X What is the value of x?
2 answers:
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Given:
DE = (6x - 9) cm
EF = (4x + 4) cm
LM = 14 cm
MN = 16 cm
To find:
The value of x.
Solution:
<em>If three or more parallel lines intersect two transversals, then they cut off the transversals proportionally.</em>
Do cross multiplication.
Add 144 on both sides.
Subtract 56x from both sides.
Divide by 40 on both sides, we get
The value of x is 5.
1st step. Calculate the area of the parallelogram
We can use the following formula:
where,
base, b = 9 km
height, h = 5 km
Therefore,
The area of the parallelogram is 45 km^2
2nd step. Calculate the area of the triangle
Let's use this formula:
where,
base, b = 6 km
height, h = 3 km
Therefore,
The area of the triangle is 9 km^2
3rd step. calculates the ratio of the area of the parallelogram to the area of the triangle
Answer: the area of the parallelogram is 5 times greater than the area of the triangle.