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2 years ago

I NEED HELP PLEASE, THANKS.

Mathematics

1 answer:

saveliy_v [14]2 years ago

6 0

Answer:

B. $33.7 mm; 54mm^2$

Step-by-step explanation:

<em><u>To find the perimeter, use the formula:</u></em>

P = a + b + c

P = 12 + 12 + 9.7

P = 33.7

<em><u>To find area, use the formula:</u></em>

A = $\frac{1}{2} bh$

A = $\frac{1}{2} (12)(9)$

A = $\frac{1}{2} (108)$

A = 54

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