Answer:
Step-by-step explanation:
y=18°
x=64°
x+y+z=180
64+18+z=180
82+z=180
z=180-82=98°
Answer: 60°
Step-by-step explanation:
apply concept: the interior angle sum of triangle is 180°
x+x+x=180
3x=180
x=60
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this is also an equilateral triangle which if you know it, you will know that each angles are all 60°
Answer:
What is number to multiply by 3???
Answer:
i thinks the answer is the fourth, which an= 3-2(n-1)