Answer:
x = 50
51
Step-by-step explanation:
Question 7
This is an isosceles triangle, you can identify this, by its little tick marks on two sides of the triangle. So that means there are two 35 angles. by the rule of triangles, all angles added all together must be 180°
35 + 35 + 2x + 10 = 180
Combine like terms
70 + 10 + 2x = 180
80 + 2x = 180
2x = 180 - 80
2x = 100
2x/2 = 100/2
x = 50
Question 8
First, we need to find x to find angle Y. This is a right triangle as we can see from the square at the corner of the triangle. So, that means, that Angle Z is 90°. We know that all angles of a triangle will add up to 180 no matter what.
3x + 2x + 5 + 90 = 180
Comebine like terms
3x + 2x = 5x
90 + 5 = 95
5x + 95 = 180
5x = 180 - 95
5x = 85
5x/5 = 85/5
x = 17
Angle Y = 3x
3x
3(17)
51°
It says "Enter the value only without the degree symbol" so, 51
Hope this helps ^w^
