vi

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Phổ biến Word Problems >

find the area of a triangle with đỉnh p(1,-1,0) Q(2,1,-2)R(-1,1,2)

Lời Giải

f in d t h e a re a o f a t r ian g l e w i t h v er t i ces p (1, - 1, 0) Q (2, 1, - 2) R (- 1, 1, 2)

Lời Giải

a re a p : 26

+1

Số thập phân

5.09901 \dots

Các bước giải pháp

Given:

p o in t : (1, - 1, 0)

p o in t Q : (- 1, 1, 2)

p o in t Q : (2, 1, - 2)

Find triangle area using vector cross product:

26

a re a p : 26

Ví dụ phổ biến

Two more than a product of a number and 4 is equal to 6.The sum of three consecutive integers is 345. Find the three integers.negative four times a number is no less than five The area of a circle is 100pi square miles. What is the đường kính?Kenneth puts 700.00 into an account to use for school expenses. The account earns 12% interest, compounded quarterly. How much will be in the account after 4 years?