KING9884 KING9884

02-12-2017
Mathematics

contestada

Find the area of the triangle determined by the points p(2, −1, 0), q(3, 1, −1) and r(0, 1, 2)

Respuesta :

chudung1976 chudung1976

02-12-2017

We can calculate the length of pq=√(2-3)²+(-1-1)²+(0+1)²=√6
pr=√(2-0)²+(-1-1)²+(0-2)²= 2√3 and qr=√18= 3√2
Now we have cosinqpr= (6+12-18):(2.√6.2√3)=0 or this triangle is right at p
And the area is 1/2 x √6 x 2√3= 3√2

Answer Link

Otras preguntas

now imagine that you are melina. you just have received the letter and gone through it .you want to buy a bike but lack money at the moment. now write a letter

Which of the following expressions has a Value of 6.18???

A restaurant owner is planning to have a courtyard area sodded. The sod comes in rolls that are 3 feet long by 1 foot wide. If the courtyard measures 60 feet by

process which is followed to monitor the movement of stock in a company

In ΔKLM, the measure of ∠M=90°, LK = 5, KM = 3, and ML = 4. What ratio represents the cosine of ∠K?

The table below describes some features of methods used to generate electricity. Name method 4.

Mathematics can help me with

A rectangular floor of area 360 m2 is going to be tiled. Each tile is rectangular, and has an area of 240 cm2. An exact number of tiles can be put into the spac

Mrs. Nygaard needs 12 hours to grade all of her students’ projects. She made a chart to show how much time she could spend grading the projects during the week.

please help!factor f(x)=6x^2-x-2