I think the answer is a tetrahedron
-253 IS deeper than -280 in water. As your going into the negatives, The smaller numbers are bigger than the big numbers. It is the opposite when it comes to positive numbers.
Answer:
b
Step-by-step explanation:
i just did it on edginity
Answer:
A ≈ 43.3 cm²
Step-by-step explanation:
the area (A) of an equilateral triangle is calculated as
A = 
( s is a side of the triangle )
given perimeter = 30 cm , then
s = 30 cm ÷ 3 = 10 cm
then
A = 
= 
= 25
≈ 43.3 cm² ( to the nearest tenth )
72:80
9:10
Divide 72 and 80 by 8 to simplify it and get the ratio
