angle x= 77° because base angles on an isosceles triangle are the same.
hope that helped^^
When al of the 10 pages are filled with 40 stickers
Answer:
B. 0.72
Step-by-step explanation:
In order to find the answer we need to use the following formula:
where:
a, b, c are the length of the sides and
the angle, so:



In conclusion,
, so the answer is B.