3 years ago

Alina says the area of the rectangular face is 10 in 2 ls

Mathematics

2 answers:

Nadya [2.5K]3 years ago

7 0

Answer:

No, the face’s dimensions are 4 in. by 6 in., so the area is 24 in.2.

Step-by-step explanation:

she didn't multiply good

Mumz [18]3 years ago

5 0

Answer:

It's B

Step-by-step explanation:

Because I randomly guessed and that was the answer.

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On a bicycle trail, the city is painting arrows like the one shown below: Upper pointing arrow with height of 15 and length of 1

Luden [163]

Answer:

229.5 $cm^{2}$

Step-by-step explanation:

In order to calculate the area of the arrow we need to calculate the area of the body of the arrow, and then the head of the arrow. The body of the arrow is a rectangle meaning that the area (Ar) can be calculated by multiplying the length by the height like so...

Ar = l * h

Ar = 11cm * 12cm

Ar = 132 $cm^{2}$

Now we need to find the area of the head of the arrow, which is a triangle and therefore we can use the formula for the area of a triangle (At) which is height times base divided by 2...

At = $\frac{h * b}{2}$

At = $\frac{15cm * 13cm}{2}$

At = $\frac{195cm^{2} }{2}$

At = 97.5 $cm^{2}$

Now we simply add both areas together to calculate the total area of the arrow...

132 $cm^{2}$ + 97.5 $cm^{2}$ = 229.5 $cm^{2}$

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vovangra [49]

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malfutka [58]

Answer:

Step-by-step explanation: a real one for the points

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