Question

The area of a triangle formed by the points A(3,0),B(7,0) and C(7,5) is​

Answer 1

Answer:

20 sq units

Step-by-step explanation:

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length = 7-3 = 4

breadth = 5

area = 4*5 = 20 sq. units

Answer 2

Answer:

Correct option is

C

8

The area of the ΔABC with vertices

A(x

1

,y

1

)=(3,0),B(x

2

,y

2

)=(7,0) & C(x

3

,y

3

)=(8,4) is

Ar.ΔABC=

2

1

[x

1

(y

2

−y

3

)+x

2

(y

3

−y

1

)+x

3

(y

1

−y

2

)]

=

2

1

{3(0−4)+7(4−0)+8(0−0)} sq.units =8 sq. units.

Hence, option C.