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Need help on 12...have to find the area..teacher said to use pythagreoum(how ever u spell it) theorem

Need Help On 12have To Find The Areateacher Said To Use Pythagreoumhow Ever U Spell It Theorem class=

Sagot :

Answer:

58[tex]\sqrt{65}[/tex]

Step-by-step explanation:

you can find the height of this trapezoid by using the pythagorean theorem where the hypotenuse is 18 and one leg is 8 (33-25)

let x = height

[tex]8^{2}[/tex] + [tex]x^{2}[/tex] = [tex]18^{2}[/tex]

[tex]x^{2}[/tex] = 324 - 64

[tex]x^{2}[/tex] = 260     therefore, x = [tex]\sqrt{260}[/tex]

[tex]\sqrt{260}[/tex] = [tex]\sqrt{4}[/tex]· [tex]\sqrt{65}[/tex]  or  2[tex]\sqrt{65}[/tex]

A = [tex]\frac{1}{2}[/tex]h x (sum of the bases)        

 

bases are 25 and 33

A = (2[tex]\sqrt{65}[/tex]) ÷ 2)58