How can you an area of triangles and trapezoids

answer:

linear equations are when the points on a graph combine to make a line

step-by-step explanation:

hello from mrbilldoesmath!

answer:

c= 42.5

discussion:

in the attachment, l is the longest side of the right triangle and "c" is its hypotenuse. the pythagorean theorem gives

20^2 + l^2 = c^2                     =>   as 20^2 = 400 and c = l+5

400+ l^2 = (l+5)^2                   =>   (l+5)^2 = l^2 + 10l + 25

400 + l^2 = l^2 + 10l + 24     =>   subtract l^2 from both sides

400   =   10l + 25                       =>   subtract 25 from both sides

400 -25 = 10l           =>

375 = 10l                 =>

l = 375/1- = 37.5

hence c =   l + 5 = 37.5 +5 = 42.5

you,

mrb

answer:

3

step-by-step explanation: