Which of the following is Heron's Formula for finding area of triangle

A = s ( s − a ) ( s − b ) ( s − c ) A=\sqrt{s\left(s-a\right)\left(s-b\right)\left(s-c\right)} A = s ( s − a ) ( s − b ) ( s − c ) <path d="M263,681c0.7,0,18,39.7,52,119c34,79.3,68.167, 158.7,102.5,238c34.3,79.3,51.8,119.3,52.5,120c340,-704.7,510.7,-1060.3,512,-1067 c4.7,-7.3,11,-11,19,-11H40000v40H1012.3s-271.3,567,-271.3,567c-38.7,80.7,-84, 175,-136,283c-52,108,-89.167,185.3,-111.5,232c-22.3,46.7,-33.8,70.3,-34.5,71 c-4.7,4.7,-12.3,7,-23,7s-12,-1,-12,-1s-109,-253,-109,-253c-72.7,-168,-109.3, -252,-110,-252c-10.7,8,-22,16.7,-34,26c-22,17.3,-33.3,26,-34,26s-26,-26,-26,-26 s76,-59,76,-59s76,-60,76,-60z M1001 80H40000v40H1012z">

A = s ( s + a ) ( s + b ) ( s + c ) A=\sqrt{s\left(s+a\right)\left(s+b\right)\left(s+c\right)} A = s ( s + a ) ( s + b ) ( s + c ) <path d="M263,681c0.7,0,18,39.7,52,119c34,79.3,68.167, 158.7,102.5,238c34.3,79.3,51.8,119.3,52.5,120c340,-704.7,510.7,-1060.3,512,-1067 c4.7,-7.3,11,-11,19,-11H40000v40H1012.3s-271.3,567,-271.3,567c-38.7,80.7,-84, 175,-136,283c-52,108,-89.167,185.3,-111.5,232c-22.3,46.7,-33.8,70.3,-34.5,71 c-4.7,4.7,-12.3,7,-23,7s-12,-1,-12,-1s-109,-253,-109,-253c-72.7,-168,-109.3, -252,-110,-252c-10.7,8,-22,16.7,-34,26c-22,17.3,-33.3,26,-34,26s-26,-26,-26,-26 s76,-59,76,-59s76,-60,76,-60z M1001 80H40000v40H1012z">

A = ( s + a ) ( s + b ) ( s + c ) A=\sqrt{\left(s+a\right)\left(s+b\right)\left(s+c\right)} A = ( s + a ) ( s + b ) ( s + c ) <path d="M263,681c0.7,0,18,39.7,52,119c34,79.3,68.167, 158.7,102.5,238c34.3,79.3,51.8,119.3,52.5,120c340,-704.7,510.7,-1060.3,512,-1067 c4.7,-7.3,11,-11,19,-11H40000v40H1012.3s-271.3,567,-271.3,567c-38.7,80.7,-84, 175,-136,283c-52,108,-89.167,185.3,-111.5,232c-22.3,46.7,-33.8,70.3,-34.5,71 c-4.7,4.7,-12.3,7,-23,7s-12,-1,-12,-1s-109,-253,-109,-253c-72.7,-168,-109.3, -252,-110,-252c-10.7,8,-22,16.7,-34,26c-22,17.3,-33.3,26,-34,26s-26,-26,-26,-26 s76,-59,76,-59s76,-60,76,-60z M1001 80H40000v40H1012z">

A = s ( s × a ) ( s × b ) ( s × c ) A=\sqrt{s\left(s\times a\right)\left(s\times b\right)\left(s\times c\right)} A = s ( s × a ) ( s × b ) ( s × c ) <path d="M263,681c0.7,0,18,39.7,52,119c34,79.3,68.167, 158.7,102.5,238c34.3,79.3,51.8,119.3,52.5,120c340,-704.7,510.7,-1060.3,512,-1067 c4.7,-7.3,11,-11,19,-11H40000v40H1012.3s-271.3,567,-271.3,567c-38.7,80.7,-84, 175,-136,283c-52,108,-89.167,185.3,-111.5,232c-22.3,46.7,-33.8,70.3,-34.5,71 c-4.7,4.7,-12.3,7,-23,7s-12,-1,-12,-1s-109,-253,-109,-253c-72.7,-168,-109.3, -252,-110,-252c-10.7,8,-22,16.7,-34,26c-22,17.3,-33.3,26,-34,26s-26,-26,-26,-26 s76,-59,76,-59s76,-60,76,-60z M1001 80H40000v40H1012z">

What is the semi-perimeter?

A circular object rotated 90 degrees on its axis

The distance around a semi truck multiplied by the square root of the perimeter

Laws of Sines and Cosines_Math 9 (B04)

Authored by Eugenia Go

Mathematics

9th Grade

CCSS covered

Used 6+ times

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30 questions

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MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What is the length of side x?

130 cm

112 cm

150 cm

105 cm

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Find angle A

53.6

13.3

113.1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following formulas shows the Law of Cosines?

c² = a² + b² - 4ac + cosA

c² = a² - b² - 2abcosC

c² = a² + b² - 2abcosC

(cos A)/a = (cos B)/b

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What is the area of this triangle?

14.494 meters squared

108.184 meters squared

54.092 meters squared

54.35 meters squared

Tags

CCSS.HSG.SRT.D.9

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Amanda and Jamie are standing 25 feet apart and spot a bird in the sky between them. The angle of elevation from Amanda to the bird is 55, and from Jamie to the bird is 63. How far away is the bird from Amanda (air distance)?

25.23

23.19

22.15

20.85

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Find m<B

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Find BC

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

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Laws of Sines and Cosines_Math 9 (B04)

What is the length of side x?

Find angle A

Which of the following formulas shows the Law of Cosines?

What is the area of this triangle?

Amanda and Jamie are standing 25 feet apart and spot a bird in the sky between them. The angle of elevation from Amanda to the bird is 55, and from Jamie to the bird is 63. How far away is the bird from Amanda (air distance)?

Find m<B

Find BC

Use the Law of Sines to solve for BC

Use the Law of Cosines to find the value of x.

Two stakes are holding a small blimp in place. Stake A measures an angle of elevation of 49^o and Stake B measures an angle of elevation of 58^o. If the string attached to Stake A has a length of 148 feet, what is the length of the string attached to Stake B?

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Discover more resources for Mathematics

Laws of Sines and Cosines_Math 9 (B04)

What is the length of side x?

Find angle A

Which of the following formulas shows the Law of Cosines?

What is the area of this triangle?

Amanda and Jamie are standing 25 feet apart and spot a bird in the sky between them. The angle of elevation from Amanda to the bird is 55, and from Jamie to the bird is 63. How far away is the bird from Amanda (air distance)?

Find m<B

Find BC

Use the Law of Sines to solve for BC

Use the Law of Cosines to find the value of x.

Two stakes are holding a small blimp in place. Stake A measures an angle of elevation of 49o and Stake B measures an angle of elevation of 58o. If the string attached to Stake A has a length of 148 feet, what is the length of the string attached to Stake B?

Access all questions and much more by creating a free account

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Mathematics

Two stakes are holding a small blimp in place. Stake A measures an angle of elevation of 49^o and Stake B measures an angle of elevation of 58^o. If the string attached to Stake A has a length of 148 feet, what is the length of the string attached to Stake B?