math help learn how to solve

Mathematics
Tutor: None Selected Time limit: 1 Day

A(-1,-2)B(b,1),and C(6,-3)are three points and AB is perpendicular to BC  I need to find the possible values of b. also find area of triangle formed by A B and C and also find the measure the acute angles need help to learn how to solve

May 10th, 2015

area=(-1,-2)(b,1)(6,-3)

-1(b,1)(6,-3)=-b-1-6+3

b=6-3+1

b=4

area 45degree*90=180cm

angle AB is perpendicular to BC thus its 90 degrees

180-90=90degrees.

the acute angles are

90/2=45 degrees.

May 10th, 2015

Studypool's Notebank makes it easy to buy and sell old notes, study guides, reviews, etc.
Click to visit
The Notebank
...
May 10th, 2015
...
May 10th, 2015
Dec 11th, 2016
check_circle
Mark as Final Answer
check_circle
Unmark as Final Answer
check_circle
Final Answer

Secure Information

Content will be erased after question is completed.

check_circle
Final Answer