Answer:

Step-by-step explanation:

Answer:
From the given graph:
the coordinates of triangle RST are;
R= (2, 1),
S= (2,-2),
T= (-1,-2)
Given: Scale factor =
and center of dilation at (2,2)
The mapping rule for the dilation applied to the triangle as shown below:
; where k represents the scale factor i.e,
or we can write it as ;
For R=(2, 1)
The image R' = 
⇒ R'=
Similarly for S= (2, -2) and T= (-1,-2)
therefore, the image of S'= 
⇒ S'=
The image of T' =
⇒T' = 
Now, labelling the image of triangle R'S'T' as shown in the figure given below
Answer:35
Step-by-step explanation:
22+13=35
This looks like an inscribed angle, so the angle will be half of the arc. The arc is
360° - 220° = 140°
1/2 × 140 = 70°
The answer is D. 70°