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11 votes
11 votes
Geometry PLS HELP due soon

Geometry PLS HELP due soon-example-1
User Mastacheata
by
2.8k points

1 Answer

20 votes
20 votes

Answer:

(3)
x = 7.5 and
y = 51

(4)
x = 6

Explanation:

Question 3

Required

Solve for x and y

We have:


16x - 18 + 10x +3 = 180 --- angle on a straight line

Collect like terms


16x + 10x = 180 + 18 - 3


26x = 195

Solve for x


x = 195/26


x = 7.5

Also:


16x - 18 = 2y ---- opposite angles

So, we have:


16 * 7.5 - 18 = 2y


120 - 18 = 2y


102 = 2y

Divide by 2


51 = y


y = 51

Question 4:

Required

Solve for x

We have:


11x - 2 + 5x - 4 = 90 ---- angle at right-angled

Collect like terms


11x + 5x = 90 +2 + 4


16x = 96

Divide by 16


x = 6

User Rxu
by
2.3k points