3 Jessica is a custodian at Oracle Arena. She waxes 20 m² of the floor in of an hour. Jessica waxes the floor at a
constant rate.
At this rate, how many square meters can she wax per hour?
m?

the answer is 62

step-by-step explanation:

this can be solved first with pythagorean theorem, which tells us to square both legs of the triangle and sum it. this will be equal to the square of the hypotenuse.

the hypotenuse is the side "opposite" the 90 degree angle, which is x.

so we can write using pythagorean theorem,

simplifying:

to further simplify this radical, we need to use the property  

thus