Carpenters use a tool called a speed square to help them mark right angles . A speed square is a right triangle A . write a polynomial that represents the area of the speed square shown

B. Find the area when X=4.5 in

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A.

B.

Step-by-step explanation:

A.

Where,

Plug in the values to get a polynomial that represents the area of the tool

B. To find area, when x = 4.5 in, plug in the value of x into the equation for the area of the tool.

1. 22

2. 1

3. 7

4. 18

step-by-step explanation

e2020 got it right

we have three similar triangles, because each has a right angle and shares an angle.   let's write the angles in order: opposite to short leg, long leg, hypotenuse.

cab similar to bad similar to cbd

or as ratios,

ca: ab: cb = ba: ad: bd = cb: bd: cd

we also know

ac = ad + cd

(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd

(ad+cd)/cb=cb/cd

we have cb=6, ad=5 and seek x=cd.

we reject the negative root and conclude x=4

answer: 4