Solving for Unknown Angles in Triangles

Question 1

Megan constructed triangle ABC. In Megan’s triangle, m∠A is represented by x°, m∠B is 4 times greater than m∠A, and m∠C is 30° less than 5 times m∠A.Choose the statements that are true about the triangle Megan constructed. Select all that apply.

Revolt · Accepted Answer

A: m∠A = x°; C: m∠B = (4x)°; D: m∠C = (5x – 30)°

Question 2

Question 2

Revolt · Accepted Answer

°: 84; °: 75

Question 3

m∠A = ✔ 21203630 °

Revolt · Accepted Answer

A: ✔ 21

Question 4

What is the value of x?

Revolt · Accepted Answer

C: 127

Question 5

What equation can be used to find the value of x?

Revolt · Accepted Answer

A: ✔ 132 = x + (3x – 24)

Question 6

Given the diagram, which statement is not true?

Revolt · Accepted Answer

C: m∠1 + (6x + 8)° + (7x – 2)° = 180° because they can form a straight line which measures 180°.

Question 7

m∠B = 80✔ 84120112 °

Revolt · Accepted Answer

B: ✔ 84

Question 8

What is the measure of ∠B?m∠B= 18✔ 396378°

Revolt · Accepted Answer

B: ✔ 39

Question 9

m∠C = 85✔ 7582120 °

Revolt · Accepted Answer

B: ✔ 75

Solving for Unknown Angles in Triangles Answers

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