No. It's not because quadrilaterals only have to have four sides for it to be considered one.
a) 247 ÷ 11 = 22 r.5 <em>since there is a remainder it is not a factor</em>
b) 247 ÷ 13 = 19 there is no remainder so this is a factor! The other factor is 19.
Answer: B, D
(2x²/3)=dg
2x²=3dg
x²=((3dg)/2)
So x=√((3dg)/2) or x=-√((3dg)/2)
ANSWER
A=16
EXPLANATION
The radius of the circle is r=4 units.
The area of a triangle is

Both the height and the base of the triangle are radii, which is 4 units.
The area of the two isosceles right triangle is
