How are the proofs for the side length ratios of 30-60-90 and 45-45-90 triangles similar? how are they different?

The two triangles are not similar

Step-by-step explanation:

Given side length ratios of 30-60-90 and 45-45-90 triangles. we have to tell are these two triangles similar.

To prove the two triangles similar either the angles are similar or the sides are in same proportion.

In ΔABC, the sides are in ratio and

In ΔPQR, the sides are in ratio

Hence, the sides

The sides are not in same proportion.

⇒ No similarity rule apply

Hence, These two triangles are not similar

1) is right

step-by-step explanation:

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

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