Respuesta :

KN =KS +SNKS =10Δ MSN is isosceles, because m∠MSN=90⁰, m∠N=45⁰, so m∠NMS=45⁰,
and MS=SN=10.KN =KS +SN =10+10=20
KN=20Area of a trapezoid = (1/2)*(b1+b2)*h
b1=10, b2=20, h=10Area  of a trapezoid = (1/2)*(10+20)*10=150Area of trapezoid KLMN =150KN=20
Ver imagen mkryukova19

Answer:

KN=20 KLMN=150

Step-by-step explanation:

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