Triangles
Which of the 4 options can make a triangle:
A: 14,72,86 B: 82,34,42
C: 54,34,89 D: 47,62,89
D (the largest side has to be less than than the sum of the two other sides)
if a regular polygon has an exterior angle of 60, how many sides does it have?
6 (360/60)
The sum of two angles is 180 degrees.
What kind of angle do they make?
A. Adjacent C. Right
B. Supplementary D. Acute
B (definition of a supplementary angle)
What is the volume of a cube if its length is 5?
125(LxWxH)
A triangle has side lengths of 9 and 12. What is the range of the possible side lengths?
3<x<21
(the largest side has to be less than than the sum of the two other sides)
What is the sum of the interior angles of a regular 8-sided figure?
1080
180(8-2)
A triangle has angles of 54,x, and Y.
The supplementary exterior angle if Y is 132.
Find X
78 (180-132=78)
A circle with a radius of 15 has an arch length of 60. what is the area of this segment? Round your answer to the nearest tenth.
7.9
60/360(pi)(15)
A right triangle with a height of 24ft casts a 12ft shadow creating a 25-degree angle. What is the total length of the missing side? Find this answer using COS. Round your answer to the nearest 10th.
26.5
cos25=26/x
What is the sum of the exterior angles of a 13-sided polygon?
360 degrees?
the exterior of any polygon will always equal 360
m<1 = 63
m<x is the opposite exterior angle of m<1.
True or false? m<x = m<1
True
Given a rectangular pyramid with a base length of 47, base width of 38, and height of 70. Find the Surface area. Round your answer to the nearest tenth
8000.9
equation:
A=lw+l√(w2)2 +h2+w√(l2)2+h2