Answer:
a
Step-by-step explanation:
since 90 degrees is 1/4 of a circle, the area of the sector is 5²pi/4 = 25/4pi = 19.63
3420°
explanation:
the equation of the sum of interior angles are (n-2)x180
polygon above has 21 sides so you sub n as 21 and plug the equation in the calculator
Answer:
one is correct.
Step-by-step explanation:
because it have one solution when you graph it
Answer:
14 is the length of the missing side.
Step-by-step explanation:
Use pythagorean theorem.



