Notice this is a geometric progression since each number multiplied by some factor equals the next number in the sequence, in this case,

Then by applying the formula for sum to infinity of a geometric progression,
Answer:
They are identical triangles.
Step-by-step explanation:
Angles in a triangle add up to 180 degrees.
The triangle with 39 and 90 has a missing angle of 51 degrees, and the triangle with 51 and 90 vice versa.
Answer:
Step-by-step explanation:
area = ½bh = 12 mm²
bh = 24 mm²
(b,h) = (3,8) and (6,4)
Answer:

Step-by-step explanation:
Given:
Gisselle has 1/2 of a candy bar.
She role off 1/2 of what she had and split it into three equal pieces.
Question asked:
What fraction of a candy bar was each piece?
Solution:
Gisselle has = 
She role off = 

As she split it into three equal pieces, we will divided it by 3, we get,


Therefore, fraction of a candy bar of each piece is 