70 degrees
Angle FED = 180 - 140 = 40
180 (sum of all angles in a triangle) - 40 = 140
140/2 = 70
3n - 1
When n = 1,
3n - 1 = 3*1 - 1 = 3 -1 = 2
When n = 2,
3n - 1 = 3*2 - 1 = 6 -1 = 5
When n = 3,
3n - 1 = 3*3 - 1 = 9 -1 = 8
Hence, the first three terms are 2, 5 and 8.
Answer:
So the triangle adds up to 180
Answer:
90
Step-by-step explanation:
216/36= 6
6 times 15=90
Hope this helped
:)
Answer:
Expression
Step-by-step explanation:
