Joel wants to fence off a triangular portion of his yard yard for his chickens. The three pieces of fencing he has to use are 8 feet, 15 feet and 20 feet
Accepted Solution
A:
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