In order for a regular polygon to tile a plane, the interior angle must be a divisor of 360°. The interior angle at each vertex will have measure 180(n -2)/n for an n-sided polygon. So you must have
.. 360/(180(n -2)/n) is an integer
.. = 360n/(180(n -2))
.. = 2 +4/(n -2)
That is, n-2 must be a divisor of 4, one of 1, 2, 4. So, the number of sides of the regular polygon must be 3, 4, 6.
Of your choices, A and D are appropriate.
The equation of a straight line with gradient m passing through the origin is:
The line passes through the origin, so the y-intercept is
Answer:
㏒e(x)= 5
Step-by-step explanation:
Answer:
Hence the slope of a line is 2
(3,4) and (5,8)
Slope of a line= 8–4/5–3 (y2-y1/x2-x1)
4/2
2
Step-by-step explanation:
a) 24.7×52.3=1291.81
On rounding off to 3 significant digits we get
1290
b)
=31.304951
On rounding off to 5 significant figures we get
=31.305
c)
On rounding off to 2 significant figures we get
=4.3
Hence required answers
a)1290
b)31.305
c)4.3
I hope it helped you