1/3(a + b) = 60
a + b = 60 * 3 = 180
1/4(a - b) = 28
a - b = 28 * 4 = 112
a + b = 180
a - b = 112
---------------add
2a = 292
a = 292/2
a = 146
a + b = 180
146 + b = 180
b = 180 - 146
b = 34
so ur 2 angles are : 146 and 34
1.20/4 = 0.3
Hope this helps!
Please mark me as brainliest if you can, I really appreciate it!
Faces- 5
Edges- 9
Verticies- 6
Answer 45
Step-by-step explanation: i show my work in case
First, lets convert our dimensions into cm.
2*2.54 = 5.08 cm.
1.5*2.54 = 3.81 cm.
Now, lets multiply by for the get the dimensions of the original painting in inches.
5.08*40 = 203.2 cm
3.81*40 = 152.4 cm
Finally, lets divide our new dimensions.
203.2/2.54 = 80 in.
152.4/2.54 = 60 in.
The dimensions of the original painting is 80 in. by 60 in.
