Help me please area of trapezoids
1 answer:
Answer:
Area of ABCD = 30 cm2
Step-by-step explanation:
We have the formula to calculate the area of a trapezoid as following:
<em>Area of a trapezoid = 1/2 x (Base side 1 + Base side 2) x Height </em>
The two base sides of a trapezoid is parallel.
In the trapezoid ABCD, vector AB and vector DC have the same direction
=> AB and DC are parallel and they are two base sides of the trapezoid.
As BH is perpendicular to DC
=> BH is the height of the trapezoid and BH = 6cm
So that the are of the trapezoid is:
Area of ABCD = 1/2 x (AB + DC) x BH = 1/2 x (4+6) x 6 =30 cm2
You might be interested in
Yes, by Pythagoras: Larguest side² = other side² + other side² (65²=33²+56²).
The equation to show the depreciation at the end of x years is
Data;
- cost of machine = 1500
- annual depreciation value = x
This is an equation written to represent a word problem into mathematical statement and this is easier to solve.
To write a linear depreciation model for this machine would be
For number of years, the cost of the machine would become
This is properly written as
where x represents the number of years.
For example, after 5 years, the value of the machine would become
The value of the machine would be $500 at the end of the fifth year.
From the above, the equation to show the depreciation at the end of x years is f(x) = 1500 - 200x
Learn more on linear equations here;