Examples with solutions for Area of a Deltoid: Finding Area based off Perimeter and Vice Versa

Exercise #1

The kite ABCD has an area of 36cm².

What is its perimeter?

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Video Solution

Answer

10+273 10+2\sqrt{73} cm

Exercise #2

The perimeter of the deltoid ABCD shown below is 30 cm².

Calculate its area.

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Video Solution

Answer

391 3\sqrt{91} cm²

Exercise #3

What is its perimeter of the deltoid ABCD if its area is 16cm²?

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Video Solution

Answer

213+229 2\sqrt{13}+2\sqrt{29} cm

Exercise #4

Kite ABCD has an area of 40cm².

What is its perimeter?

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Video Solution

Answer

10+265 10+2\sqrt{65} cm

Exercise #5

The deltoid ABCD shown below has an area of 35cm².

What is its perimeter?

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Video Solution

Answer

2106+229 2\sqrt{106}+2\sqrt{29} cm

Exercise #6

If the area of the rhombus ABCD is 4a2 4a^2 cm2 cm^2 , what is its perimeter?

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Video Solution

Answer

2a(2+10) 2a(\sqrt{2}+\sqrt{10})

Exercise #7

Deltoid ABCD has an area of 48 cm², while the area of the triangle ABC is 54 cm².

What is the perimeter of the deltoid?

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Video Solution

Answer

613+237 6\sqrt{13}+2\sqrt{37} cm

Exercise #8

Deltoid ABCD has an area of b2 b^2 cm².

What is its perimeter?

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Video Solution

Answer

2b(2+5) 2b(\sqrt{2}+\sqrt{5})

Exercise #9

Deltoid ABCD has a perimeter equal to 24 cm.

Calculate the area of the deltoid, given that the secondary diagonal is 5 cm long.

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Video Solution

Answer

54(11+299) \frac{5}{4}(\sqrt{11}+\sqrt{299}) cm²

Exercise #10

The deltoid ABCD has a perimeter of 18 cm.

BD=4 BD=4

Calculate the area of the deltoid.

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Video Solution

Answer

8225 8\sqrt{2}-2\sqrt{5} cm²

Exercise #11

The deltoid ABCD has a perimeter equal to 34 cm.

AC=12 AC=12

Calculate the area of the deltoid.

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Video Solution

Answer

48613 48-6\sqrt{13} cm²

Exercise #12

The deltoid ABCD has an area of 18cm².

What is its perimeter?

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Video Solution

Answer

18+61025 18+6\sqrt{10-2\sqrt{5}} cm

Exercise #13

The deltoid ABCD has an area equal to 90 cm².

If the area of the triangle BCD is equal to 18 cm², then what is the perimeter of the deltoid?

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Video Solution

Answer

30+285 30+2\sqrt{85}

Exercise #14

The deltoid ABCD shown below has a perimeter of 193+113 \sqrt{193}+\sqrt{113} cm.


Calculate its area.

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Video Solution

Answer

35 35 cm²

Exercise #15

The deltoid ABCD has a perimeter of 44 cm.

Calculate its area.

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Video Solution

Answer

795+519 7\sqrt{95}+5\sqrt{19} cm²

Exercise #16

Look at the deltoid ABCD below.

2AB=BC 2AB=BC

Calculate the area of the deltoid given that its perimeter is 72 cm.

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Video Solution

Answer

2011+41463 20\sqrt{11}+4\sqrt{1463} cm²

Exercise #17

The perimeter of deltoid ABCD is equal to 20 cm.


AC=411 AC=\sqrt{41}-1

Calculate the area of the deltoid.

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Video Solution

Answer

328 \sqrt{328} cm²

Exercise #18

The perimeter of the deltoid ABCD is equal to 5x 5x .

BD=4 BD=4

Express the area of the deltoid in terms of X.

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Video Solution

Answer

2x24+22.25x24 2\sqrt{x^2-4}+2\sqrt{2.25x^2-4} cm²

Exercise #19

The deltoid ABCD is shown below.

BC=13CD BC=\frac{1}{3}CD

The perimeter of the deltoid is equal to 24 cm.

BD=775 BD=\sqrt{77}-\sqrt{5}

Calculate the area of the deltoid.

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Video Solution

Answer

27725 2\sqrt{77}-2\sqrt{5} cm²