dondre72
29.08.2019 •
Mathematics
Angles that are congruent and supplementary must be
a. acute angles.
b. obtuse angles.
c. straight angles.
d. right angles.
Solved
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Ответ:
In order to be supplementary, two angles must meet the sum of 180 degrees. In order to be congruent, two angles must be equal in measure.
90+90= 180
Hope this helps!
Ответ:
412.7 square feet
Step-by-step explanation:
A circle of circumference 72 ft will have a radius given by ...
C = 2πr
(72 ft) = 2(3.14)r
r = (72 ft)/(6.28) ≈ 11.465 ft
The area of a circle with that radius is ...
A = πr² = 3.14(11.465 ft)² ≈ 412.7 ft²
Sirgeo can enclose a circular area of about 412.7 square feet with 72 feet of fence.