Revu 110 vvm, DU – 4 uul, LD-6 cm, AD = / cm, and 2B = 80.
2. PQRS in which PQ = QR = 3.5 cm, PS = RS = 5.2 cm and ZPQR=120°.
1. ABCD in which AB = 4.2 cm, BC = 4.5 cm, CD = 4 cm, DA = 4.8 cm, and ZA = 72º.

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Ответ:

jessica2138

29.04.2021

Mathematics

52 degrees

Step-by-step explanation:

Complementary angles have a sum of 90. This means when added they will equal 90. So to solve had the 2 expressions and set them equal to 90.

This looks like, (2x+18)+(6x-8)=90 . Then, isolate the variable and solve.

Remove the parentheses

2x +18 +6x -8 =90

Add like terms

8x +10 =90

Subtract 10 from both sides

8x = 80

Divide both sides by 8

x=10

Finally, plug 10 in for x in the expression for angle b. This equals 52 degrees.

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Revu 110 vvm, DU – 4 uul, LD-6 cm, AD = / cm, and 2B = 80.2. PQRS in which PQ = QR = 3.5 cm, PS = RS = 5.2 cm and ZPQR=120°.1. ABCD in which AB = 4.2 cm, BC = 4.5 cm, CD = 4 cm, DA = 4.8 cm, and ZA = 72º.