Answer: "<span>
in²</span> " .
{that is: "
(2/15) in² . "}.
___________________________________________Explanation:___________________________________________The formula/equation for the Area of a rectangle: A = L * w ; in which: L = <span>
⅖ in ;
</span> w = ⅓ in;
___________________________Find the area; in a "fraction value" ;_______________________________ A = L * w ; → Substitute the given values for "L" (length) and "w" (width);
and solve for "A" (area) in the "form of a fraction:
__________________________________________________
A = (2/15) in * (1/3) in ;
→ A = [(2*1) / (5*3)] * in * in ;
______________________________________________________→ Answer: The area is: "
in² " .
{that is, "
(2/15) in² " .
}.
______________________________________________________
The ratio of the lengths is 75 : 25 or 3 : 1
The ratio of and area is the square of this: ie 9 : 1 or 75^2 : 25^2
(In working out the area the radius is squared)
The ratio of the volumes is the cube of this: ie 27 : 1 or 75^3 : 25^3
(In working out the volume the radius is cubed)
Hopefully this explains it
Answer:
BC ≈ 19.4 cm
Step-by-step explanation:
using the cosine ratio in the right triangle
cos71° =
=
=
( multiply both sides by BC )
BC × cos71° = 6.3 ( divide both sides by cos71° )
BC =
≈ 19.4 cm ( to 3 sig. figs )
It's a scalene triangle, a triangle where all of the sides are different lengths.