H E L P m e P L E A S EEE
i need help on both question

1. rotation

2. the image and pre-image are always congruent to each other

Step-by-step explanation:

even thought the bottom figure is rotated, it does not change in size. It's literally a copy of the other, just rotated, thus, they are congruent.

the arc length is found by finding the circumference of the full circle (2xpixradius) and then dividing by 4 to find just one quarter of the circle (90 degrees).

3,6 and 7.

step-by-step explanation:

a) unit place of 37 is 7

so the unit place of cube of 37 will be

7³= 343=3

the answer is 3.

b) unit place of 56 is 6, so the unit place of cube of 56 will be

6³= 216=6

the answer is 6.

c) unit place of 133 is 3, so the unit place of cube of 133 will be

3³= 27= 7.

the answer is 7.