Kelsey measured the sides of a porch to determine if it is a right triangle. Does her porch with side lengths of 42 feet, 56 feet, and 70 feet form a right triangle?

Yes, because 42 squared + 56 squared not-equals 70 squared.
Yes, because 42 squared + 56 squared = 70 squared.
No, because 42 squared + 56 squared = 70 squared.
No, because 42 squared + 56 squared = 70 squared.

Yes, because 42 squared + 56 squared = 70 squared.

Step-by-step explanation:

Its B my doods

Step-by-step explanation:

answer:   28.56 feet (approx)

step-by-step explanation:

since, triangle abc has measure of angle c equal to 55 degrees, measure of angle abc equal to 90 degrees, and length of bc equal to 20 feet.

we have to find out the measurement of segment ab.

therefore, tan 55° =

but bc = 20 feet.

⇒ tan 55 ° =  

⇒ ab = 20 × tan 55 °

⇒ ab = 20 × 1.42814800674

⇒ ab = 28.5629601348   ≈ 28.56 feet