Question

find the area of the triangle whose vertices are (2,2),(5,2),(2,6)
​

Answer 1

Answer:

Area of triangle ABC=5.5cm

2

Step-by-step explanation:

Given vertices are

A(2,5) B(−1,0) C(2,−4)

x

1

,y

1

x

2

,y

2

x

3

,y

3

Area of triangle ABC =

2

1

[x

1

(y

2

−y

3

)+x

2

(y

3

−y

1

)+x

3

(y

1

−y

2

)]

=

2

1

[2(0−4)+(−1)(−4−5)+2(5−0)]

=

2

1

[2(−4)+(−1)(−9)+2(5)]

=

2

1

[−8+9+10]

=

2

1

[11]

=

2

1

.11

∴ Area of triangle ABC=5.5cm

2

Answer 2

Step-by-step explanation:

(2,2) , (5,2) , (2,6)

Ans (8 ,9)

I hope my answer is a right