Question

Calculate the size of the lettered angles in the following triangles (not drawn to scale):
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Answer 1

first I have given the names to the angles for better understanding

the names that I let are X and Y

hope it will help you please mark me brainlist thankyou

Answer 2

110

Step-by-step explanation:

x= 180 - 115 = 65

sum of all angel must equal 180

45 + 65 + y = 180

110 + y = 180

y = 180 - 110

y = 70

a + y = 180

a = 180 - 70

a = 110