3492 and 704. the value of the 4 in blank is blank times the value of 4 in blank
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Circumference + perimeter =38
x = circumference of circle
find r in terms of x
2
r=x
r=
Area=r^2
so..
A=()^2
=(
)
=
(38-x) is perimeter
then
()^2
+ ()^2
then you graph it and it equals
16.716 cm the circumference of the circle
x = circumference of circle
find r in terms of x
2
r=
Area=
so..
A=
=
=
(38-x) is perimeter
then
(
then you graph it and it equals
16.716 cm the circumference of the circle
Coordinates of the given triangle ΔPQR P(1,-1), Q(3,-2), R(3,-4).
a) Let us discuss the rule for rotation of 90° clockwise about the origin.
If given coordinate is (h,k) is rotated 90° clockwise about the origin the position of rotated coordinate will be (k, -h).
x and y coordinates would switch their values and after switching x any values, the y value of the coordinates would reverse in sign.
So, the coordinates of rotated ΔPQR P(1,-1), Q(3,-2), R(3,-4) would become
P(1,-1) --> P'(-1,-1)
Q(3,-2) --> Q'( -2,-3)
R(3,-4) --> R'(-4,-3)
b) If given coordinate is (h,k), the coordinates after reflection across the x-axis would besome (h,-k). (Just change in the sign of y-coordinate).
So, the coordinates of rotated ΔPQR P(1,-1), Q(3,-2), R(3,-4) would become
P(1,-1) --> P"(1,1)
Q(3,-2) --> Q"( 3,2)
R(3,-4) --> R"(3,4)
