Answer:
A right trapezoid is a trapezoid in which one of the sides is perpendicular to the two bases: In this special case, if you know the length of the perpendicular side, that's the same as the altitude of the trapezoid.
Answer:
Step-by-step explanation:
a) 20% decrease, b) 25% increase
<h3>
Answer: Choice C</h3>
The base 16 is the same as 4*4.
From there, the rule
is used to get 
Afterward, the exponents are added getting 1/2+1/2 = 2/2 = 1. The rule is
which only works if the bases are both the same.
Answer:
A=a+b
2h=20+8
2·20.4≈285.6
Step-by-step explanation: