anastasiagumenuk anastasiagumenuk

17-05-2020
Mathematics

contestada

СРОЧНО НАДО ПОМОГИТЕ

дві сторони трикутників дорівнюють 6 см і 10 см ,а кут між ними дорівнює 120 градусов.Знайдіть периметр трикутника/

Respuesta :

nktselepov nktselepov

17-05-2020

Третю сторону знаходимо по теоремі косинусів

х²=6²+10²-2·6·10·cos120°=36+100-120·(-0,5)=196.

х=14 см.

Р=6+10+14=30 см.

Answer Link

Otras preguntas

you are planning a special party and want some help from your friend.write an email of 100-150 words to your about the party

In the context of the passage, how do people create change? How did the Scottsboro Boys bring attention to racial inequality in America, specifically in its cri

Calculate the enthalpy change for the reaction C2H4(g) + H2(g) -> C2H6(g) from the following data: Show your work. C2H4(g) + 3O2(g) -> 2CO2(g) + 2H2O(l) D

Complete the following probability distribution table and then calculate the stated probabilities. Outcomeabcde Probability0.20.060.60.04 Incorrect: Your answer

One of the major problems facing the FAA and air carriers today is aging aircraft. a. Trueb. False

que es un condicionamiento clásico de pavlov -PSICOLOGIA

What is the total workhours needed for a crew of 10 people that works 8 hour days to install 10 tons of rebar at a rate of 0.10 tons/Whr? 1) 32 Whrs 2) 4,000 Wh

In the given figure, what is the measure of angle CPE? C (2x+28) E P (x +60)° D F (4x+12)° Figure not drawn to scale O A. 64° O B. 68° O c. 70° O D. 80°

If a profit-maximizing firm in a competitive market discovers that, at its current level of production, price is greater than marginal cost, it should:A. Increa

Militarized containment established by NSC-68:a) Stated that Chinese aggression against Taiwan would result in war.b) Legitimized interventions in Korea and Vie