11. [size=100]In ΔDEF, m[/size][size=100]∠D =80º, [size=100]m[/size][size=100]∠E =60º ,DE = 5 in, and [/size][/size]EF = 8 in.[br] a) What is [size=100]m[/size][size=100]∠F?[/size][br] b) List the angles in ΔDEF in order from smallest to largest.[br] c) List the sides of ΔDEF in order from shortest to longest.[br] d) The length of DF has to greater than ___ and less than ___. [br]
a. 40[br]b. angle F, angle E, angle D[br]c. DE, DF, EF[br]d. 3 and 13