Answer:
Step-by-step explanation:
width=√(130²-120²)=√[10²(13²-12²)]=10√(13+12)(13-12)=10√(1×25)=10×5=50 m
perimeter=2(120+50)=2×170=340 m
area=120×50=6000 m²
Answer:

Step-by-step explanation:
Given

g(x) = f(x) 4 units left
Required
Find g(x)
When a point is translated 4 units left, the rule is:

So, we have:

is calculated as:

Hence:

Answer:
BEA is 36° and BED is 72° therefore DAEB is 108°
Answer:
it's like 12 because 12 over the 4 get to 40 minus 12