Answer:
The size is 37.5 degrees
Step-by-step explanation:
The total angle in the triangle is 180
Since the other two angles are congruent. it means that they are equal
Let us call each of the angles x
Mathematically,
x + x + 105 = 180
2x = 180-105
2x = 75
x = 75/2
x = 37.5
Answer:
12
Step-by-step explanation:
in this problem there is A+b=15
A=9
B=12
have you tried 42 because it's a 90 degree triangle and 30+18+42 equals 90
Answer:
Decrease
Step-by-step explanation:
It gets smaller because it is 100% is full size, so less would make it smaller
