So, the ones that are on the inside of the shapes are angles, and the lines are sides. What you’ll do is, you’ll read them as: side angle side(SAS) or, side side side(SSS). So for example problem 3 would be side angle side(SAS), because there is one angle in the middle and two sides on the out side. If you read one as angle angle side(AAS) or side side angle(SSA) or angle side angle(ASA) you’ll put not congruent. I hope this helps.
Answer:
3.14(3.1)^2 = 30.1754
Step-by-step explanation:
pi times radius squared - area of a circle
For this case we have the following fraction:

Dividing the numerator and the denominator between 3 we have:

Then, multiplying the numerator and the denominator by 4 we have:

We observe that we have a number divided by 100. Therefore, we must move the comma two units to the left:

Answer:
The number in its decimal form is given by:

Answer:
the second one
Step-by-step explanation: