jackiealvarado0518 jackiealvarado0518

08-02-2021
Mathematics

contestada

PLS HELP

What is the length, in feet, of AD in the isosceles trapezoid ABCD?
15 ft
c
1410
5 ft
A
D
F
Note: Figure is not drawn to scale.
O 3 feet
O 10 feet
O 141 feet
O 21 feet

PLS HELP What is the length in feet of AD in the isosceles trapezoid ABCD 15 ft c 1410 5 ft A D F Note Figure is not drawn to scale O 3 feet O 10 feet O 141 fee class=

Respuesta :

stacy7147 stacy7147

08-02-2021

Answer:

21 feet

Explanation:

Using pythagorean theorem to find the length of the added length of the bottom.

A^2+B^2=C^2 or 4^2+B^2=5^2 or 16+B^2=25

25-16=9 so B^2 is 9 and the square root of that is 3 so B is 3. Then you add 15+3+3 to get 21.

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