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3 years ago

I NEED HELP PLEASE, THANKS.

Mathematics

1 answer:

saveliy_v [14]3 years ago

6 0

Answer:

B. $33.7 mm; 54mm^2$

Step-by-step explanation:

To find the perimeter, use the formula:

P = a + b + c

P = 12 + 12 + 9.7

P = 33.7

To find area, use the formula:

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

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

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

A = 54

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4 0

2 years ago

A triangle has a perimeter of

lapo4ka [179]

Answer:

The smallest side is 7inches

Step-by-step explanation:

Let the shorter side be y.

The medium side is 4 more than the short side i.e

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Logest side = 5y.

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But the perimeter of a triangle is the Sum of all sides i.e

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3 years ago