Question

What is the length of the hypotenuse of a right triangle if each of the two legs is 7 units

Square root of 14
7
Square root of 98
49

Answer 1

If you have two equal legs you can simply multiply length of one leg * sqrt(2) to get the hypotenuse

In your case, 7*sqrt(2) = ?

Answer 2

is it 14 or 7 ?

Answer 3

No not quite

Remember, the 2 is inside the square root

We can rewrite 7 as sqrt(49) since the square root of 49 is 7

So now we have sqrt(49) * sqrt(2) = ?

Answer 4

98 or 49

Answer 5

Remember your square root rules

Sqrt(a) * sqrt(b) = sqrt(a*b)

So sqrt(49) * sqrt(2) = ?

Answer 6

just 49

Answer 7

When you have two square roots multiplied together, keep the root and multiply what’s inside the roots

So sqrt(49) * sqrt(2) = sqrt(49*2) = sqrt(98)

Answer 8

okay