Question

What is the length of the hypotenuse

Answer 1

Answer:

35 km

Step-by-step explanation:

Since this is a right triangle we can use the Pythagorean theorem

a^2 + b^2 =c^2 where a and b are the legs and c is the hypotenuse

28^2 + 21^2 = c^2

784+441 = c^2

1225 = c^2

Take the square root of each side

sqrt(1225) = sqrt(c^2)

35 = c

Answer 2

Answer:

35 km

Step-by-step explanation:

The pythagorean theorem states that a^2+b^2=c^2. (The hypotenuse is c)

So, we will plug a and b in.

28^2+21^2=c^2

Then, simplify.

784+441=c^2

1225=c^2

c=35

Therefore, the hypotenuse is 35 km.