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mariarad [96]
3 years ago
9

Gina is cutting construction paper into rectangles for a project. She needs to cut one rectangle that is 12 inches by 14 1/4 inc

hes. She needs another rectangle that is 10 1/2 inches by 10 1/4 inches. How many Total square inches of construction paper does Gina need for her project
Mathematics
2 answers:
Fittoniya [83]3 years ago
6 0

Answer:

278.63 square inches

Step-by-step explanation:

Gina needs to cut two types of rectangles.

Dimensions of one rectangle is given as,

Width = 12 inches

Length = 14\frac{1}{4} = \frac{57}{4} inches

So, the area of this rectangular paper will be

Area = width × length = 12\times \frac{57}{4} = 171 inches²

Dimensions of the other rectangular paper has been given as

Width = 10\frac{1}{4} = \frac{41}{4} inches

Length = 10\frac{1}{2} = \frac{21}{2} inches

So, the area of this rectangle will be

Area = width × length = \frac{41}{4} \times \frac{21}{2} = 107.63 inches²

Thus the total area she need to cut = 171 + 107.63 = 278.63 square inches.

juin [17]3 years ago
6 0

Answer:

Total area of construction paper = 278.63 square inches

Step-by-step explanation:

Given:

Dimension for First rectangle = 12\times 14\frac{1}{4}

Dimension for another rectangle = 10\frac{1}{2}\times 10\frac{1}{4}

Solution:

First we find the area of the first rectangle

Area = length\times width

A_{1} = 12\times 14\frac{1}{4}

A_{1} = 12\times \frac{57}{4}

A_{1} =  \frac{12\times 57}{4}

A_{1} =  3\times 57

A_{1} = 171\ square\ inches

Similarly, we find the area of the another rectangle.

Area = length\times width

A_{2}= 10\frac{1}{2}\times 10\frac{1}4}

A_{2}= \frac{21}{2}\times \frac{41}4}

A_{2}= \frac{21\times 41}{2\times 4}

A_{2}= \frac{861}{8}

A_{2} = 107.63\ square\ inches

So, the total square inches of construction paper is given as:

A = A_{1}+A_{2}

Substitute A_{1}\ and \ A_{2}\ value

A=171+107.63

A = 278.63 square inches

Therefore, Gina needs 278.63 square inches of construction paper for her project.

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