Question

Plot the points A(1, 4), B(-2, 1) and C(4, 1) on the graph. Name the figure so obtained on

joining them in order.​

Answer 1

Step-by-step explanation:

Given A (1,4) B (-2,1) C (4,1)

distance between AB=root over (-2,-1)

power2 +(1-4) power 2

Froot over 9+9

=root 18

=3 root 2

BC distance =root over (4-(-2))power2 +(1+1)

power 2

=root 6power = 6

CA distance =root

over(4-1)power2+(1-4)power 2

=root 18

=3 root 2

therefore AB=CA

it is a isosceles triangle =bh/2

height=root over a power 2-b2/4

h=root over 18-9-9

h=3

area=6.9/2

=54/2

=27 sq.cm

It may helpful to you.