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tankabanditka [31]
3 years ago
10

What is the measure, in degrees, of ZA?

Mathematics
2 answers:
Elza [17]3 years ago
8 0

Answer:

Step-by-step explanation:

We know that the sum of interior angles of a triangle is 180° so we can say:

40 + 2x + 3x = 180°

40 + 5x = 180°

5x = 140°

x = 28°

Now substitute in 28 for the value of x in Angle A:

=> 2x would become 2(28)

=> 56° = ∠A

Hope this helps!

vesna_86 [32]3 years ago
6 0

Answer:

28

Step-by-step explanation:

2x + 3x + 40 =180

5x= 180 - 140

5x=140

x= 28

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