Distance ÷ Speed = Time
81 miles ÷ 60.4 miles per hour= 1.34 hours
1.34 hours ≈ 1 hour 20 min
Answer:
The A) ΔABC ≅ ΔEDC
Step-by-step explanation:
The AAS congruence method requires 2 angles and their un-included side to be congruent. ∠A ≅ ∠E due to the markings, ∠C ≅ ∠C because they are vertical angles, and AB ≅ ED due to the markings. 2 angles and their un-included side are congruent.
As for the congruence statement, A is the correct answer because ∠A ≅ ∠E, ∠B ≅ ∠D, and ∠C ≅ ∠C. The order of the naming of the triangles aligns to the angle's congruence.
Answer:
Perimeter of a polygon with 31 sides = (side length) x 31 = 279 units
Area of a polygon with 31 sides = (n x Side2 x cot (Π/n))/4 = (n x 92 x cot (Π/31))/4 = 6173.16 square units
Sum of the interior angles of a polygon with 31 sides = (n-2) x 180 degrees = (31-2) x 180 degrees = 5220 degrees
Interior Angle of a polygon with 31 sides = (n-2) x 180/n degrees = (31-2) x 180/31 degrees = 168.38 degrees
Exterior angle of a polygon with 31 sides = 180 - Interior Angle = 180 - 168.38 = 11.61 degrees
Inradius = Radius of In-circle = (side length) x cot (Π/31) = 9 x cot 5 = 88.5 units
Circumradius = Radius of Circum-circle = (side length) x cosec (Π/31) = 9 x cosec 5 degrees = 88.96 units
Symmetry Group = D31 31 rotational symmetries and 31 reflection symmetries. The "D" stands for di-hedral.
Step-by-step explanation:
here is your answer if you like my answer please follow
Answer:
32inch³
Step-by-step explanation:
formula= ½bh²
½×4×4×4
½×64
= 64/2
=32inches³
Answer:
-9/8, or -1.125
Step-by-step explanation:
Don't really know how to explain this one. Sorry.
Hope it helps, though!
