The LCM of 3 and 8 is 24.
Answer:
CRINGE
Step-by-step explanation:
Ok ngl BIG BIG CRINGE
We see a right triangle here.
Use the Pythagorean Theorem:
a^2+b^2=c^2
a & b=legs
c=hypotenuse
a^2+15^2=20^2
a^2+225=400
a^2=175
a=13.2287565553
a=13.2
The missing side is 13.2cm
Answer:

Step-by-step explanation:
Given :
Length of the rectangle (l)=15m
Width of the rectangle (w)= 6 m
Area of the rectangle can be calculated as :

Now,
Side of square (s)=12 m
Area of the square can be find:

Answer: D
Step-by-step explanation:A scientist who studies the objects in the sky, including planets, galaxies, black holes, and stars, is called an astronomer