Respuesta :
the complete question in the attached figure
we know that
in a right triangle
c²=a²+b²
c=20 ft
a=8ft
b=15 ft
so
c²------> 20²----> 400
and
a²+b²-----> 8²+15²------> 64+225-----> 289
so
400 is not 289
therefore
Part A)
the answer is
Joel is not be able to make a right triangle with his fence
Part B)
if Joel cut the longest piece of fencing in order to make a right triangle
then
a²+b²=289
so
c²=√289-------> c=17 ft
the perimeter of the fence is
17+8+15-----> perimeter=40 ft
if Joel takes 30 sec to install----------> 1 ft of fencing
X--------------------------------------> 40 ft
x=40*30-----> x=1200 sec------> x=1200/60----> x=20 minutes
Part B)
the answer is
20 minutes
we know that
in a right triangle
c²=a²+b²
c=20 ft
a=8ft
b=15 ft
so
c²------> 20²----> 400
and
a²+b²-----> 8²+15²------> 64+225-----> 289
so
400 is not 289
therefore
Part A)
the answer is
Joel is not be able to make a right triangle with his fence
Part B)
if Joel cut the longest piece of fencing in order to make a right triangle
then
a²+b²=289
so
c²=√289-------> c=17 ft
the perimeter of the fence is
17+8+15-----> perimeter=40 ft
if Joel takes 30 sec to install----------> 1 ft of fencing
X--------------------------------------> 40 ft
x=40*30-----> x=1200 sec------> x=1200/60----> x=20 minutes
Part B)
the answer is
20 minutes
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Answer: 21 inches
Step-by-step explanation:
A^2+B^2=C^2
A^2+400=841
-400 -400
______________
A^2=441
Find the square root of 441 which is 21. So therefore your answer would be 21 inches.