Question

Find the distance between the points A(c, 0) and B (0,-c).

3. Find the area of a triangle whose vertices are (1,-1), (-4, 6) and (-3,-5) ( please answer need very fast)​

Answer 1

Answer:

distance=√(x2-x1)²+(y2-y1)²

area of triangle=1/2 |x1(y2-y3)+x2(y3-y1)+x3(y1-y2)|

Step-by-step explanation:

distance=√(0-c)²+(-c-0)²

distance=√c²+c²

distance=√2c²

distance=c√2

3.

area of ∆= 1/2 |1(6+5)+(-4)(-5+1)+(-3)(-1-6)|

area of ∆= 1/2 |11+16+21|

area of ∆=1/2 |48|

area of ∆=24