Question

MEDAL

Answer 1

Sarah = Distence of side school to mall + Distence of mall to library side
Bret = distence of School to library side

Overall = Sum of all sides of triangle

Find the length of the sides using distence formula

\[D = \sqrt{(y2 - y1)^2 + (x2 - x1)^2}\]
i will find the length of all sides and then get their sum to find the overall as we stated.

start with side School, mall (10,-11) (10,10)
\[D = \sqrt{(10+11)^2 + (10-10)^2}\]
\[D = 21\]

Side mall library (10,10) (-10,10)
\[D = \sqrt{(10-10)^2 + (-10-10)^2}\]
\[D = 20\]

Side library school (-10,10) (10,-11)
\[D = \sqrt{(-11-10)^2 + (10+10)^2}\]
\[D = 29\]

Overall = 21 + 20 +29
Overall = 70 miles

Answer 2

Question 2
Can be solved using pythagorean Theorem because the triangle is a right triangle
we have one of the legs = 15 and the hypotenuse = 25 we need to find the 2nd leg

\[a^2 + b^2 = C^2\]
where a is the 1st leg and b is the 2nd and c is the hypotenuse

15^2 + b^2 = 25^2
we need to find b
1st simplify
225 + b^2 = 625
b^2 = 625 - 225
b^2 = 400
now to get rid of the square exponent we need to sqrt both sides
\[b = \sqrt{400}\]
b = 20
hope that helps

Answer 3

Questions?