(geomtry pls )a napkin is folded into an isosceles triangle, triangle abc, and placed on a plate, as shown. the napkin has a perimeter of 38 centimeters.

to the nearest square centimeter, how many square centimeters of the plate are covered by the napkin?

16 square centimeters

30 square centimeters

56 square centimeters

60 square centimeters

answer: finding the extract measurements and knowing the points

step-by-step explanation:

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