Question

Help my teacher only gave one example for this

Answer 1

x = 55

y = 70

Explanation:

the tic marks are indicating this triangle is equilateral which means 'y-10' equals 'x+5' because equilateral triangles are also equiangular

if we use 'x+5' to define all three angles we must add it 3 times

x+5+x+5+x+5 = 3x + 15

all 3 angles add up to 180 degrees

to find 'x', set up this equation:

3x + 15 = 180

3x = 165

x = 55

now to find 'y' we need to add 'y-10' three times and set equal to 180

y-10 + y-10 + y-10 = 180

3y - 30 = 180

3y = 210

y = 70

Answer 2

Step-by-step explanation: Any triangle will equal 180 degrees

so 180 divided into thirds equals: 60

so each corner equals 60, then for the very top corner it would be 60+10=70 so y equals 70

and for the other corner its 60-5=55 so x is 55

i hope this helps