Answer:
x = 12
Step-by-step explanation:
The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.
8 + 6x is an exterior angle of the triangle, thus
8 + 6x = 30 + 4x + 2 = 4x + 32 ( subtract 4x from both sides )
8 + 2x = 32 ( subtract 8 from both sides )
2x = 24 ( divide both sides by 2 )
x = 12
Answer:
2nd option
Step-by-step explanation:
2 3/8-1 3/10
19/8-13/10
190/80-104/80
86/80
43/40
1 3/40
Answer:
i dont $ hit 85
Step-by-step explanation:
1) Find sum of (12x+9y) and (-2y)
12x+9y+(-2y)=12x+7y
2) Subtract (4x-3y) from the sum
(12x+7y)-(4x-3y)=12x+7y-4x+3y=8x+10y
3) The answer is 8x+10y
Answer: A. The two triangles are not similar because x≠20 and there cannot be three congruent interior angels.
Step-by-step explanation:
Given: △ABC has interior angles with measures x°, 90°, and 65°
△DEF has interior angles with measures y°, 65°, and 20°.
If △ABC is similar to △DEF then their corresponding angles should be equal.
Suppose △ABC is similar to △DEF then x=20°
But in △ABC
x+90°+65°=180° [angle sum property of triangle]
⇒x+155°=180°
⇒x=180°-155°
⇒x=25°
⇒x≠20°
⇒△ABC is not similar to △DEF.
Therefore A is the right option.
