Question

Analyze the diagram below and complete the instructions that follow.

find m
a.66
b.71
c.21
d.26

Answer 1

71°

Explanation:

• 84+(2x-1)+(x+8)+(x+5)=360 [angles in a quadrilateral add to 360°]
• 4x+96=360 [combine like terms]
• 4x=264 [subtract 96 from both sides]
• x=66 [divide both sides by 4]

So, angle A measures 66+5=71°