josieward josieward

03-02-2024
Mathematics

contestada

what’s is the length of a triangle when two sides are 10.4cm and has an angle of 120

Respuesta :

KiaraL2006 KiaraL2006

03-02-2024

Answer:

18.0 cm

Step-by-step explanation:

use the cosine rule:

a^2=b^2+c^2-2bcCos(A)

a^2=10.4^2+10.4^2-2x10.4x10.4Cos(120)

a^2=324.48

a=sqrt(324.48)

a=18.0cm (1dp)

hope this helps :)

Answer Link

Otras preguntas

1. Which of these is the basic unit of mass? A. L B. kg C.cm D. ml 2. The amount of matter is an object is known as _____. A. weight B. volume C. density D. mas

the boston tea party of 1773 was done to protest

In the short story “Rules of the Game” by Amy Tan, what motivates Lindo Jong to be a model of “invisible strength”? the high expectations of her children the go

A car is traveling at a constant speed of 23 m/s on a highway. at the instant this car passes an entrance ramp, a second car enters the highway from the ramp. t

After the Stamp Act, what did those who opposed the British taxes begin to call themselves?

1/2 percent, round to three positions

What occurs once in every minute, twice in every moment, yet never in a thousand years?

Choose all the sets containing the number Pi: natural numbers whole numbers integers rational numbers irrational numbers real numbers

The words “two minutes” in the excerpt above evokes a sense of _____. growth fear danger time

Two to the fifth power subtract 4+8 to the second power