Question

The leg of a right triangle is 3 units and the hypotenuse is 7 units. What is the length, in units, of the other leg of the triangle?
4
Square root of 40
Square root of 58
10

Answer 1

Ok so what do you know about the triangle side length formula?

Answer 2

i think its 10 or 4

Answer 3

Leg2+Leg2=Hypotenuse2

In this case we have
3^2 + Leg2 = 7^2

Answer 4

yeah

Answer 5

So how would you solve this?

Answer 6

7+2 ?

Answer 7

No not quite

Answer 8

oh

Answer 9

Ok first we do
3^2, this is 9 bc its 3x3.
Second we do
7^2, this is 49 or 7x7
So we have this
9+Leg^2=49

Answer 10

what would you do from here?

Answer 11

is it 40?

Answer 12

To simplify, we would do
49-9=40

we do this so that we can get rid of 9 on one side of the equation

so we have
leg^2=40

what from here?

Answer 13

okay

Answer 14

From there we take the square root of 40 but that's a desmol making your answer the square root of 40

Answer 15

ok