Answer:
60
Step-by-step explanation:
All the sides are equal, which makes it an equilateral triangle.
That means all the angles are equal
180/3 = 60
Angle A is 60 degrees
Answer:
C.) Solve for the varible
Step-by-step explanation:
As there is currently nothing to do other than one step, the next step would be to solve 81/9 for 9, getting the final answer of a=9.
1st number = n
2nd number = n+1
3rd number = n+2
sum of the squares of 3 consecutive numbers is 116
n² + (n+1)² + (n+2)² = 116
n² + (n+1)(n+1) + (n+2)(n+2) = 116
n² + [n(n+1)+1(n+1)] + [n(n+2)+2(n+2)] = 116
n² + n² + n + n + 1 + n² + 2n + 2n + 4 = 116
n² + n² + n² + n + n + 2n + 2n + 1 + 4 = 116
3n² + 6n + 5 = 116 Last option.
