Law of Sines, Law of Cosines, & Heron's Formula

Find the exact area of the triangle

• 13.9 in²
• 13.8 in²
• 14.0 in²
• 27.9 in²

Tags

CCSS.HSG.SRT.D.9

Find the exact area
of a triangle with two
sides that measure 6 yd
and 2 yd with an included
angle of 10°.

• 1.04 yd²
• 12.0 yd²
• 5.98 yd²
• 3.26 yd²

Tags

CCSS.HSG.SRT.D.9

Find the area of the triangle

• 24.0 cm²
• 47.9 cm²
• 19.7 cm²
• 23.967 cm²

Tags

CCSS.HSG.SRT.D.9

If you know the lengths of three sides to a triangle, what formula can you use to find an angle measure?

• Law of Sine
• Law of Cosine
• Law of Tangent
• Law of Sign

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

If you know the lengths of two sides and the angle between them, use this formula to find the side opposite the angle you know.

• Law of Sign
• Law of Cosine
• Law of Tangent
• Law of Sine

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

Find AB

• 10.03
• 8.04
• 6.10
• 4.93

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

Find the measure of ∠A

• 18
• 28
• 25
• 24

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

• 32.58
• 57.42
• 31.44
• 59.02

Tags

CCSS.HSG.SRT.C.8

Find angle A

• 53.6
• 13.3
• 113.1

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

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