Susie begins a new walking program with 600 m on the first day. Each day,
she will increase her walk by 200 m.
How many kilometers will she walk on
day 18 of her program?
kilometers
A.1.35
B.4
C.8
D.27

Answer

1.6 is the answer but it's no up there

isocolese triangle

we know that the line connect a and b is the hyptonuse

so first find the hypotonuse length using the distance formula, call the length c

since it is an isocolese triangle, the lengths of the legs are the same

using pythagorean theorem,

in this case, a=b since isocolese triangle so we get

or

we can find c so we can find the distances

we know that if we draw 2 circles, each has center at a and b, and find where they intersect, we can the 2 possible locations for c

if a has center at (xa,ya) and b has center at (xb,yb), then we can solve where

and

intersect to find where they intersect

i'm not going to put an example because i have to go to class. i hope this explanation is enough