Finding the Missing Side Length of a Composite Shape

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Kirito123
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Homework Statement


Composite figure: a rectangle with sides 14 m (top and bottom) and 8 m (left), with a triangle attached on the right, having a 5 m vertical height marked by a right-angle symbol.


Homework Equations


A = l x w
A = hbb / 2

The Attempt at a Solution


To find the area of a rectangle you would use the formula "A = L x W". In this case A = 14 x 8 which is eual to 112, Now all i need is the area of the triangle and then i add them together and that will be the area of the whole figure.

So i know we have the height of the triangle is 5
Also the part i colored yellow is 8 m long.
Composite figure: a rectangle labelled 14 m across the top and 14 m across the bottom, 8 m on the left side, joined to a triangle on the right with a 5 m perpendicular height marked; the shared edge is highlighted in yellow.


So my question is how can i find the length of 1 of the sides of the triangle.
 
Kirito123 said:

Homework Statement


View attachment 100649

Homework Equations


A = l x w
A = hbb / 2

The Attempt at a Solution


To find the area of a rectangle you would use the formula "A = L x W". In this case A = 14 x 8 which is eual to 112, Now all i need is the area of the triangle and then i add them together and that will be the area of the whole figure.

So i know we have the height of the triangle is 5
Also the part i colored yellow is 8 m long.
View attachment 100650

So my question is how can i find the length of 1 of the sides of the triangle.

Why would you need to find that?
 
Ray Vickson said:
Why would you need to find that?

I need to find the area of that triangle, that way i can find the whole area of that composite shape.
 
Kirito123 said:
I need to find the area of that triangle, that way i can find the whole area of that composite shape.
for area of that triangle you already have the base ( 8m) and height (5m), so you don't need to calculate other sides, you can directly calculate the area.
 
OMG I totally didn't even think about that...... face palm:doh:. sahil you just cleared my mind, man I am so in a blrr today. anyway i now know what to do.