12.4.2 Law of Cosines (SSS)
Authored by Sean Sattler
Mathematics
9th - 11th Grade
CCSS covered
Used 4+ times
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7 questions
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1.
FILL IN THE BLANKS QUESTION
2 mins • 1 pt
Find angle Z. Round to the nearest whole number. Do not use units.
(a)
Answer explanation
Tags
CCSS.HSG.SRT.D.10
CCSS.HSG.SRT.D.11
2.
FILL IN THE BLANKS QUESTION
2 mins • 1 pt
Find the measure of the smallest angle in triangle ABC, if the side lengths are 6, 19, and 22. Round to 1 decimal place. Do not use units.
(a)
Answer explanation
Tags
CCSS.HSG.SRT.D.10
CCSS.HSG.SRT.D.11
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Use Law of Cosines to find angle T.
62.2°
53.1°
59.5°
64.7°
Tags
CCSS.HSG.SRT.D.10
CCSS.HSG.SRT.D.11
4.
FILL IN THE BLANKS QUESTION
2 mins • 1 pt
Find the largest angle in a triangle with side lengths 30cm, 40cm, and 50cm.
(a)
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What type of triangle has side lengths 7, 12, and 18 ?
Acute Scalene
Obtuse Scalene
Right
Obtuse Isosceles
Tags
CCSS.4.G.A.2
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What type of triangle has side lengths 9, 14 and 227
Acute Scalene
Obtuse Scalene
Right
Obtuse Isosceles
This won't make a triangle.
Tags
CCSS.7.G.A.2
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What type of triangle has side lengths 6, 11, 12.
Acute Scalene
Obtuse Scalene
Right
Obtuse Isosceles
This won't make a triangle.
Tags
CCSS.HSG.CO.C.10
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