Select the correct answer. michael is making a card for his dad\'s birthday. he\'s shaded a triangular section on the card where he wants to write his dad a message. what is the area of the parts of the card that are not shaded? a. 144 square centimeters b. 108 square centimeters c. 72 square centimeters d. 36 square centimeters
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shubhamchouhanvrVT 1 year ago
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The area of the parts of the card that are not shaded Option c) 72 cm²

What is an area?

The space occupied by any two-dimensional figure in a plane is called the area. The space occupied by the rectangle in a two-dimensional plane is called the area of the rectangle.

In the figure attached, we can see a rectangle ABCD with a length of 12 cm and a width of 9 cm.

A  triangle PEF with height BE and base EF.

Since side AE = 3 cm, so side EB = EC = 9 - 3 = 6cm

and EF = AD = 12 cm

Now we will find the area of of the parts of the card that are not shaded.

Area of parts that are not shaded = Area of rectangle - area of shaded triangle

= (12×9) - (1/2)(BE)(EF)

= 108 - (1/2)(6)(12)

Option c) 72 cm² is the area of the non-shaded part.

To know more about the area follow

https://brainacademy.pro/question/24375372

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charlescoleman229 1 year ago
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Answer: everyone is saying c or d. I’m not completely sure.

Explanation:

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