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i need help with this question pls :)

I Need Help With This Question Pls class=

Sagot :

Answer:

x=75º   definition of an isosceles triangle      or Base angle Theorem

y=60º  definition of complementary angles

Step-by-step explanation:

180-75-75=30

90-30=60

Some schools call theorems and deffintions by other names, but I tried to give you the ones that are most commonly used in all schools.

Answer:

y = 90, x= 105

Step-by-step explanation:

Total number of sides = ( n-2)180

n = number of sides

(4-2)180

2× 180=360

y is a right angle triangle = 90°

x=90+90+75+x= 360

255+x=360

x= 360-255

= 105