When you multiply a negative and a positive you will get a negative answer so 3*7 is 21 so -3 * 7 is -21
I think it is 51.5 because I did 2x - 24 + x - 2 + x = 180 and then collected like Yerma and equaled it to 180.
The net shows an equilateral triangle with side length 24 cm.
The area of an equilateral triangle of side length s is ...
... A = (√3)/4·s²
Using the above side length, the area is
... A = (√3)/4·(24 cm)² = 144√3 cm² ≈ 249.4 cm²
Your best choice is the first one:
... A) 249.6 cm²
Answer:
what did you say
Step-by-step explanation:
The answer to this question is -5+9=4
