Answer:
b1 = (2A/ h) - b2
Step-by-step explanation:
A = 1/2 h(b1 + b2)
b1 + b2 = A / 1/2h = 2A/h
b1 = (2A/ h) - b2
Answer:
20.25 m²
Step-by-step explanation:
the area (A) and circumference (C) of a circle are calculated using the formulae
C = 2πr and A = πr² ( where r is the radius )
calculate the radius using the formula for circumference
2πr = 9π ( divide both sides by 2π )
r =
=
= 4.5, hence
A = π × 4.5² = 20.25π m²
Volume = length x width x height:
Volume = 3 x 6 x 2 = 36 cubic inches.
A cube has six sides so you divide 3750 by 6 to find the area of a single face. This would be 625. Area is length times width and since it is a cube you know that both are the same. This gives you an answer of 25.