Question

I need help with this question pls :)

Answer 1

y = 90, x= 105

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

Answer 2

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

y=60º definition of complementary angles

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.