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2 years ago

HELLLPPPP!!!!!!!!!!!!!! I WILL MAKE YOU BRAINLIEST!!!!!!!!!! PLEASE HELP ME!!!

Mathematics

2 answers:

Nimfa-mama [501]2 years ago

4 0

Answer:

A. 12x; 5x + 14

Step-by-step explanation:

Perimeter is:

P = a + b + c
P = 4x - 3 + x + 9 + 8 = 5x + 14

Area is:

A = 1/2bh
A = 1/2*8*3x = 12x

Correct choice is A

oksano4ka [1.4K]2 years ago

3 0

$\\ \sf\longmapsto Perimeter=Sum\:of\:sides$

$\\ \sf\longmapsto Perimeter=4x-3+x+9+8$

$\\ \sf\longmapsto Perimeter=5x+14$

And

$\\ \sf\longmapsto Area=\dfrac{1}{2}base(height)$

$\\ \sf\longmapsto Area=\dfrac{1}{2}(3x)(8)$

$\\ \sf\longmapsto Area=12x$

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