12.05.2013 Views

1 - matematicas1-2-3-4bachillerato

1 - matematicas1-2-3-4bachillerato

1 - matematicas1-2-3-4bachillerato

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

32. Triángulo rectángulo<br />

Cálculo del cateto C:<br />

tan c= c<br />

b<br />

c=b (tan C)<br />

c=25 (tan15° 30´)<br />

c=25 (tan 15.5°)<br />

c=25 (0.2773)<br />

c=6.9325 = 6.93 cm<br />

Cálculo del ángulo B:<br />

tan b= b<br />

c<br />

tan b= 25<br />

6.9<br />

Tan B=3.6232<br />

< B = tan -1 3.6232<br />

< B = 74.57° = 74°30’<br />

Cálculo de la hipotenusa a:<br />

cos c= b<br />

a<br />

a= b<br />

cos c<br />

a=<br />

25 25<br />

= =25.94<br />

cos 15.5° 0.9636<br />

A=25.94<br />

Cálculo del area:<br />

A= 1<br />

4 a2 sen 2 C<br />

A= 1<br />

4 (25.94)2 sen2(15.5°)<br />

A= 1<br />

4<br />

(672.8836) sen31°<br />

A=168.2209 (0.5150)<br />

A=86.63 cm 2<br />

Resultados<br />

c=6.93 cm<br />

a=25.94 cm<br />

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!