Question

using integration find the area of triangle pqr whose vertices are p(2,5) q(4,7) r(6,2)

Answer 1

Hey mate

Here is your answer

Area of ∆ = 1/2| 2(7-2)+4(2-5)+6(5-7)|

= 1/2| 2*5 + 4*(-3) + 6*2|

= 1/2 | 10-12+12|

=1/2 * 10

= 5 units.

Hope it helps you