Answer: Answer is D, a 55° angle
Step-by-step explanation:
Answer:
x= 45 degrees
Step-by-step explanation:
the top angle is a eight angle which is equal to 90 all triangles are 180 degrees both bottom angles are equal and 180 minus the 90 degree from the right angle is 90 degrees you divide that by 2 and you have your answer
Answer:
7 of the angles measure 144 degrees each and one angle measures 72 degrees
Step-by-step explanation:
Let
x -----> represent the measures of the seven same-size angles,
x/2 ----> represent the measure of the one that is "two times smaller."
we know that
The sum of internal angles of a polygon can be calculated as:

where
n is the number of sides of the polygon
In this case
n=8 (octagon)
substitute

so
The linear equation that represent this problem is

solve for x

so

therefore
7 of the angles measure 144 degrees each and one angle measures 72 degrees
A billion is 9 zeroes
1.96 is already less than 10 and greater than or equal to 1 so
1.96 times 10^9 is answer
A is answer
Answer:
1,4,9,16,25,36,49
Step-by-step explanation:
The sequence is basically square numbers