2x+38=180
2x=142 (or x+x=142 from which 2x=142)
x=71
The unknown angles are each 71
You know this answer is logical as, since two sides are 21 it hints that we are looking at an equilateral triangle, which means two of its angles will be the same
Answer:
55.8
Step-by-step explanation:
Answer:
1. 39 2. 4
Step-by-step explanation:
3 times 13 is just 13 plus 13 plus 13 and for number 2 it's asking for any number less than 5
Answer:
x = 13 and x = -3
Step-by-step explanation:
divide each side by 2 first and get:
(x-5)² = 64
take the square root of each side next and get:
x - 5 = 
x - 5 = 8 and x - 5 = -8
x = 13 and x = -3
I just did the math myself and it appears that you are correct!