Answer:
the first one
Step-by-step explanation:
because the 12.3cm line at the top put that at the bottom multiply those and there you go
check the picture below.
so it has a base of 18x18 and a height of that much.

Numerical reasoning tests are often done to assess a person's ability to solve or interpret numerical data. A good source to train numerical reasoning is the use of computer education software's that deals with numerical data, the use of textbooks, self test etc.
<h3>What is done in Numerical reasoning tests?</h3>
Here, an individual is often required to analyze numerical data and then they are expected to draw conclusions from the data, which is often presented in tabular or graphical forms.
A person can improve their numerical reasoning by;
- Do make a study schedule and keep to it.
- Do Practice as if you are going for a competition, etc.
A way that a person can improve their speed in an numerical test is to reduce the time it takes a person to take in the information that is shown in the numerical reasoning questions.
Learn more about numerical reasoning from
brainly.com/question/251701
Answer:
Step-by-step explanation:
You are stupid
I think it’s 21:9 I don’t know but I think that would be the answer