Question

Need help with these--

21. Find the possible values of a, of the distance between the points is 5, and the coordinates are (1, 1) and (4,a)

22. The Pythagorean Theorem works only for _______ triangles.

Right?

25. Three sides of a triangle are 2, 4, and 8. The two smallest sides of a similar triangle are 4 and 8. What is the measure of the missing side?

16?

Thanks
-MC

Answer 1

#22 and #25 = correct

#21 use the distance formula:

d = square root of [(x2-x1)^2+(y2-y1)^2]
where the coordinates are (x1,y1) and (x2,y2)

For your problem d = 5.... now you plug all the numbers in that equation and solve for y2.