Question

Please help and show work!! :)

Answer 1

A( 1,1) B( 7,1)

As y coordinate is same

is distance from A to B is (7-1) = 6

A(1,1) C(1,9)

As x coordinate is same

so distance from A to C is (9-1) = 8

As we know it's right angled triangle

So it's hypotenuse is √ 8^2 + 6^2 = √64 +36 =√100 = 10

So perimeter = 6+8+10 = 24

Answer 2

area of triangle=1/2*base*height

=1/2*AB*AC

=1/2*(9-1)*(7-1)

=1/2*8*6

=24 units