1. x = 60 (in this trapezoid, opposite angles are equal)
2. Find the third angle of the left triangle : 180 - 17 - 133 = 30
In a parallelogram, the side that is opposite to a side is parallel to each other.
x and the 30 degree are alternate angles -> x = 30
3. (I'll call the 4 triangles A,B,C,D respectively in anticlockwise)
Triangle A has the 25 degree angle, and the bottom right angle of triangle C, they are alternate angles (and the sides are parallel due to the property.)
So, the bottom right angle of triangle C = 25
Triangle C and D form an isoceles triangle, so x = 25.
4. This one I'll just do short. There's a right angle in the triangle that contains x.
3 angles in a triangle add up to 180, so x = 180 - 90 - 50 = 40.
Step-by-step explanation:
The pre-image points are A( 0,0 ), B(2, 0) and C(0, 4). The question is asking you to rotate the traingle 180°. Each rotation has its rules. For 180° rotation our rule is (x,y) → (-x,-y). Let's apply that to our points:
A( 0,0 ), → (0,0)
B(2, 0) → (-2,0)
and C(0, 4). → (0,-4)
Now we dilate our point ( remember the order in which you do transformation is important. Since it saids the rotation is followed that means the dilation is done second)
Our scale factor is 3. Remember when our scale factor is more than one our shape gets bigger. So our rule is (x,y) → (kx,ky). Let's apply our scale factor to all our points:
(0,0) → (0,0)
(-2,0)→( -6,0)
(0,-4) → (0,-12)
The answer is
A' (0,0) B' (-6,0) C' (0,-12)
The triangles will be similar not congruent. Remember congruent triangles have the same angles and same sizes. Similar angles have the same angles BUT different sizes. Every transformation produces congruent angles except for dilations.
I think it's 72605 because it doesn't contain a duplicate number or the numbers 8 and 9.
Answer:
-1
Step-by-step explanation:
substitute (8-3) / -5
5 / -5
-1
Answer:
D
Step-by-step explanation: