nayahlizruiz3494 nayahlizruiz3494

11-04-2018
Mathematics

contestada

The length of the sides of a triangular garden are 10m 11m 13m.Find the measure of the angle opposite the longest side to the nearest tenth of a degree

Respuesta :

tiana97 tiana97

14-04-2018

c^2=a^2+b^2-2abcosC
13^2=10^2+11^2-2×10×11×cos(°)
169=100+121-220cos(°)
220cos(°)=100+121-169
220cos(°)=52
cos(°)= 13/55
°=cos-1(13/55)
°=76.328°

Answer Link

Otras preguntas

how many legs do phytoplankton have

Evaluate the following expression: 7.0 x 10⁴ + 6.0 x 10³ A) 13 x 10⁷ B) 42 x 10⁷ C) 67 x 10³ D) 76 x 10³

An advertisement for a new model of luxury sedan would target ________??1.new drivers2.families 3 businesses 4.professional adults

What are the pH changes in the stomach before and after taking an antacid tablet?

How does shadows change during the day

What are some quotes for of mice and men for the character Curley?

Why did Leif Eriksson become an explorer and adventurer?

How do you spell anksouse?

Which phrase indicates the interior flow of thought employed in high-modern literature? a) automatic writing b) confused daze c) total recall d) stream of c

How did the Ancient Chinese preserve and prepare their bodies for the afterlife?