A.
10x3=30
15x3=45
7x3=21
All sides have increased in size by 3 times.
Step-by-step explanation:
putting x= 7
2x7x7
2x49
98(ans)
Answer:
20 side polygon: 180 x (20 -2)
Step-by-step explanation:
A n side polygon can be divided into n-2 triangles
each triangle has 180°
n-2 triangles have 180 x (n-2) degrees
Answer:
1/3
Step-by-step explanation:
there is a total of 3 guitar picks