Get the answers you need at Westonci.ca, where our expert community is always ready to help with accurate information. Experience the convenience of getting accurate answers to your questions from a dedicated community of professionals. Get quick and reliable solutions to your questions from a community of experienced experts on our platform.

Approximately how many square inches of fabric were used to make the triangular flag? 15 square inches 76 square inches 186 square inches 215 square inches.

Sagot :

The area used to make the triangular flag is 15 square inches.

Given

Two of the sides are 8 in.

Lila made a triangular flag to cheer on her favorite sports team.

The perimeter of the flag is 20 inches.

What is Heron’s formula?

Semi-perimeter is equal to the sum of all three sides of the triangle divided by 2.

Then,

The value of S is;

[tex]\rm S = \dfrac{20}{2}\\\\S =10[/tex]

Therefore,

The area used to make the triangular flag is;

[tex]\rm Area = \sqrt{s(s-a)(s-b)(s-c)} \\\\A rea= \sqrt { (10)(10-8)(10-8)(10-4) }\\\\Area = \sqrt{10 \times 2 \times 2\times 6}\\\\Area = \sqrt{240}\\\\Area = 15.49[/tex]

Hence, the area used to make the triangular flag is 15 square inches.

To know more about Heron's formula click the link given below.

https://brainly.com/question/13907146

Thanks for using our service. We aim to provide the most accurate answers for all your queries. Visit us again for more insights. We appreciate your time. Please come back anytime for the latest information and answers to your questions. We're glad you visited Westonci.ca. Return anytime for updated answers from our knowledgeable team.