Answer:
B complementary angles
Step-by-step explanation:
ED is a line.
Angles EAB and DAB are a linear pair, so they are supplementary.
Angle EAB is a right angle, so angle DAB is also a right angle.
The measure of angle DAB is 90 degrees.
The sum of the measures of angles a and b is 90 degrees.
That makes <a and <b complementary angles.
Answer:
Option C. is correct choice.
Step-by-step explanation:

Regards: Umer
The answer to the statement is 1/x-1.
Answer:
1) 18^2 = 324
324 x 3.14 = 1,017.36 in2
2) half of 25 is:
12.5
12.5^2 = 156.25
156.25 x 3.14 = 490.625 m2
Answer:
<h2>288 ft³</h2>
Step-by-step explanation:
The formula of a volume of a prism:

where
<em>B</em><em> - area of a base</em>
<em>H</em><em> - height of a prism</em>
<em />
In the base we have the right treiangle. The formula of an area of a right triangle is:

where
<em>a, b</em><em> - are legs</em>
We have

Substitute:

Calculate the volume.
Substitute

