It is common knowledge that the sum of the angles in a triangle is 180° but how about in polygons with a greater numbers of angles? If we are given a convex polygon with n sides and S is the sum of the measures of the interior angles then S = 180(n - 2).
Ex.
Find the sum of the measures of the interior angles in an octagon.
The octagon has 8 sides and we plug this value into our formula:
S = 180(8 - 2) = 1080°
Hence the sum of the measures of the interior angles in an octagon is 1080°.
Another thing with convex polygons is that the sum of the measures of the exterior angles is always 360°
m∠A+m∠B+m∠C+m∠D+m∠E+m∠F=360
5 inches = 7 feet
21/7 = 3, 3*5 = 15 inches
28/7 = 4, 4 *5 = 20 inches
3rd answer 15 inches by 20 inches
I started this one then got busy with other things.
z and 71 deg form a same side interior pattern
they're supplementary angles
sum to 180 degrees
z + 71 = 180
z = 180 - 71
z = 109 degrees
z and x are alternate angles
their measures are the same
z = 109 deg so x = 109 deg
y and 71 deg form adjacent angles which are supplementary
sum to 180 degrees
y = 180 - 71 = 109 deg
x = 109 deg, y = 109 deg, z = 109 deg
Part b
w and 88 form a supplementary pair
they add to 180 deg
w = 180 - 88 = 92 deg
v and 101 deg are vertical or opposite angles
They are congruent
So v = 101 deg
Answer:
Arithmetric, why do u keep asking the same thing! And how are you doing edpussle on the WEEKEND???
if u have other questions that ur struggling on dm me and I will help! <3
Step-by-step explanation:
X= a number
30% * x= 15
convert % to decimal (30%÷100)
0.30x= 15
divide both sides by 0.30
x= 50
CHECK:
=50 * 30%
=50 * 0.30
=15
ANSWER: 15 is 30% of the number 50
Hops this helps! :)