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3 years ago

Find the x and the area of the shape perimeter is 64.5

Mathematics

1 answer:

Umnica [9.8K]3 years ago

4 0

Answer:

x=8

A = 192

Step-by-step explanation:

The perimeter is the sum of the outer lengths

17.9 + 22.6 + 3x = 64.5

Combine like terms

40.5 +3x = 64.5

Subtract 40.5 from each side

40.5 +3x -40.5 = 64.5 - 40.5

3x =24

Divide each side by 3

3x/3 = 24/3

x = 8

The area of a triangle is given by

A = 1/2 bh

The base is 3x = 3(8) =24

and the height is 2x = 2(8) =16

A = 1/2 (24) * 16

A =192

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3 years ago

Find the x and the area of the shape perimeter is 64.5​

Find the x and the area of the shape perimeter is 64.5