- The longer be of a trapezoid is three times the shorter base. The sonparalle sides are congruent. The soparsel side is som more the the shorter base. The perimeter of the person. What is the Length of the base a 10cm​

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step-by-step explanation:

3

step-by-step explanation:

25/14 or 1.

step-by-step explanation:

the dots mean that it has infinitely more numbers behind it

first, you divide the triangle in two, tô form a retangle triangle. after, using pythagoream theorem:

18^2 = 14^2 + (x/2)^2

(x^2/4) + 196 = 324

x^2/4 = 324 - 196

x^2/4 = 128

x^2 = 512

x = √512

x = √2^9

x = 16√2 cm

i hope i you.