You divide the area and the base
Answer:
121
Step-by-step explanation:
31+90 = 121
180 - 121 = 59
180 - 59 = 121
Answer:
-157.87
Step-by-step explanation:
1) the rules are:
and

2) according to the rules above:

Answer:
90
Step-by-step explanation:
both sides are equal
both sides have to match
therefore y is 90 and x is 30
it is a symmetry thing