Question

what is the area of triangle formed by points (7, 8) (8, 9) (9, 10)
give correct answer and get 100 points​

Answer 1

Answer:

ANSWER

We know,

Area of triangle =

2

1

∣x

1

(y

2

−y

3

)+x

2

(y

3

−y

1

)+x

3

(y

1

−y

2

)∣

Therefore,

A=

2

1

∣8(−7−1)−2(1+5)+5(−5+7)∣

A=

2

1

∣−64−12+10∣

A=

2

1

∣−66∣

A=33 sq. units

Answer 2

Answer:

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