How to find the circumference of a circle that is 42m and has diameter

Circumference of the circle is

Step-by-step explanation:

we have to find the circumference of the given circle.

Given:

                     Diameter=42 m

Circumference of a circle=

So, the circumference of the circle is

answer: the value of x is 7cm

step-by-step explanation:

given that triangle abc is transformed two times to get triangle

a"b"c"

first abc is transformed in to a'b'c' as follows:

the coordinates of a are (1,-1) and transformed into a'(-1,1)

similarly b (4,-2) became b'(-4,2) and

c(7,-2) became c'(-7,2)

i.e. (x,y) becomes (-x,-y)

this is nothing but reflection about a point here origin.

thus first transformation is reflection on the origin.

next is exactly shifting 3 units down

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