2 years ago

Find the value of x so that the polygons have the same perimeter.

Mathematics

1 answer:

Novosadov [1.4K]2 years ago

4 0

Answer: x=4

Step-by-step explanation:

The perimeter´s formula for this kind of polygons is

The triangle perimeter would be:

(x+2)+(x+3)+(x+3)

And the rectangle:

(x+2)+(x+2)+x+x

For them to have the same value, we should equal them:

(x+2)+(x+3)+(x+3)=(x+2)+(x+2)+x+x

Working with this:

3x+8=4x+4

x=4

You might be interested in

I need help finding x

Nastasia [14]

All sides of a triangle add up to 180 degrees. Since we know one angle is 93 degrees, we know that the top part is going to equal 180 degrees. We know that two of those measurements are 93 and 45, so we add those together to get 138. We subtract this from 180 to find the missing angle, which is 42 degrees. So, the left side of the triangle is equivalent to 45 degrees and the right side (x) is 42 degrees. 93 + 45 + 42 = 180. If it was asking for the measurements of the supplementary angles to the bottom angles of the triangle, then those would be (for 45) 135 and (for 42) 138, that way both angles and their supplements add up to 180 each. I hope this helps and that it’s right

8 0

3 years ago

To get ready for a new school year, Meg 3 pens for $.79 each ,2notebooks for$1.29 each ,and 4 folders for $1.15 each.Sales tax f

rodikova [14]

change will be $10.07

3 0

2 years ago

Read 2 more answers

You need to buy some chicken for dinner tonight. You found an ad showing that the store across town has it on sale for $2.99 a p

Bas_tet [7]

Answer: Yes, it is worth the extra drive, going to the further store is cheaper.

The cheaper option saves you $0.89.