Answer:
x = 45
Step-by-step explanation:
→ Add all the angles together
x + 2x + 3x + 90 = 360
→ Simplify
6x + 90 = 360
→ Minus 90 from both
6x = 270
→ Divide by 6
x = 45
Answer:
x = 5
Step-by-step explanation:
Given that,
First side of a triangle = x+2
The second side of a triangle = 8
The third side of a triangle = x
We know that, perimeter is equal to the sum of all sides. So,
x+2+x+8 = 20
2x+10 = 20
2x = 10
x = 5
Hence, the value of x is equal to 5.
The rate of growth in the tree is 4 feet per year.
Height of tree at year 0 = 2 feet
Height of tree at year 1 = 6 feets
Height of tree at year 0 = 10 feets
Therefore, the difference in the heights of the tree from the previous year will be:
= 6 feet - 2 feet.
= 4 feet
In conclusion, the correct option is B.
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