Question

Can someone help me with these questions?

Answer 1

question 1 !

3x+7+90degree+x+7=180degree (sum of straight angle is 180 degree)

3x+x+7+90+7=180degree

4x+104 degree=180degree

4x=180-104

4x=76

x =76/4

x =19

Answer 2

• 1) x = 19
• 2) AB = 10.4, CX = 20.9

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Question 1

Use angle addition postulate, set up equation and solve for x:

• 3x + 7 + 90 + x + 7 = 180
• 4x + 104 = 180
• 4x = 180 - 104
• 4x = 76
• x = 76/4
• x = 19

Question 2

Use segment addition postulate, set up equation and solve for x:

• AB + BC + CD = AD

• 2x + 3 + 21 + 7X - 5 = 11x + 11.6
• 9x + 19 = 11x + 11.6
• 11x - 9x = 19 - 11.6
• 2x = 7.4
• x = 7.4/2
• x = 3.7

Find AB:

• 2*3.7 + 3 = 7.4 + 3 = 10.4

Find CX:

• 7*3.7 - 5 = 25.9 - 5 = 20.9