Answer:
B
27
Explanation:
Step One
The very first step is to show that triangles ΔABC, ΔFDC and ΔGEC are similar to one another.
1. All three triangles have a right angle in them.
- ΔABC has a right angle at A
- ΔFDE has a right angle at <FDE
- ΔGEC has a right angle at <GEC
2. All three triangles have a common angle at C
3. All three triangles are similar by AA
Step Two
Find the ratios of the heights to one another.
AC / DC = 3/2
AB / DF = 3/2 The sides of similar triangles are in the same ratio.
Step Three
Find the area of ΔABC
Area ΔABC = 1/2 AB * AC
Area ΔABC = 81
Step Four
Find the Area of ΔDFC
Area of ΔDFC = 1/2 DF * DC
But DF and DC are known in terms of AB and AC
Area of ADC = 1/2 * 2/3 * AB * 2/3 * AC
Area of ADC = 1/2 * 4/9 * AB * AC
However 1/2 AB * AC = 81 so
Area ADC = 4/9 * 81 = 36
That's a very long complex step. Make sure you follow it through.
Step Five
Find the area of ΔGEC
By a similar process
EC = 1/3 AC
EG = 1/3 AB
Area ΔGEC = 1/2 * EC * EG
Area ΔGEC = 1/2 * 1/3 AC * 1/3 AB
Area ΔGEC = 1/2 * 1/9 * AB * AC
But 1/2 AB * AC = 81
Area ΔGEC = 1/9 * 81 = 9
Last Step
Find the area of the shaded area
ΔFDC - ΔGEC = Shaded area
36 -9 = 27 = shaded area
Es muy probable que Yañez se haya referido a una <u><em>persona amargada, de</em></u> <u><em>temperamento difícil y ocasionalmente atravesado</em></u>.
El vocablo "<em>ser de la cáscara amarga</em>" es un término despectivo para referirse a <u><em>personas amargadas, de temperamento difícil y ocasionalmente atravesado</em></u>, el cual ha sido el significado más difundido.
Históricamente, ha cambiado de sentido durante varios siglos, en el siglo XVIII se empleaba para referirse a <em><u>personas pendencieras y traviesas</u></em>, en el siglo XIX por <u><em>conservadores</em></u> para referirse despectivamente de <u><em>liberales y socialistas</em></u> y en el siglo XX por <u><em>socialistas</em></u> para denominar despectivamente a <u><em>conservadores y reaccionarios</em></u>.
En síntesis, es muy probable que Yañez se haya referido a una <u><em>persona amargada, de temperamento difícil y ocasionalmente atravesado</em></u>.
Invitamos cordialmente a ver esta pregunta sobre vocablos en español: brainly.com/question/20516535
Yes, the Mg2+ ion and the neutral neon atom are called isoelectronic