Answer:
7n + 14 and 7(n + 2)
Step-by-step explanation:
We know that since our triangle is isosceles, then two of the sides are the same. Given in the problem, we know that these two congruent sides are both 2n + 7. We also know the third side is 3n.
Perimeter is essentially just the sum of the side lengths of the figure. We simply need to add 2n + 7, 2n + 7, and 3n together:
P = 2n + 7 + 2n + 7 + 3n
Combine like terms:
2n + 2n + 3n + 7 + 7
7n + 14
That's one way we can write it. Another way is to factor out the 7:
7n + 14 = 7(7n/7 + 14/7) = 7(n + 2)
Thus, our two expressions are: 7n + 14 and 7(n + 2).
<em>~ an aesthetics lover</em>
All 3 angles of any triangle always sum to 180°,
So d+10 = 180-(62+38)
d+10 = 180-100
d+10 = 80
d+10-10 = 80-10
d = 70°
Answer:
1080"
Step-by-step explanation:
12*10= 120
120*9= 1080
The slope is 1/2, I explain in the other question