Your answer would be x = 12
The triangle sum theorem states that the 3 angles in a triangle equal 180.
Since we have a 90 degree angle shown, we can add it to the other two and set it equal to 180.
30+90+6x-12=180
108+6x=180
6x=72
x=12
Answer:
45 cm
Step-by-step explanation:
Let length of the field in the drawing = x
80 : 120 :: 30 : x
Product of extreme = Product of means
80 * x = 120 * 30
Answer:
c = 16
Step-by-step explanation:
First, distribute the 9 to the parentheses:
7c + 5 = 9(c − 3)
7c + 5 = 9c - 27
Then, subtract 7c from both sides:
5 = 2c - 27
Add 27 to both sides:
32 = 2c
Divide each side by 2:
16 = c
So, c = 16
Answer:
1. False, it has 2 pairs of 2 congruent sides
2. True, a rhombus has 2 pairs of 2 congruent sides
3. False, a square has 4 same-size sides, a rectangle has 2 pairs of them
4. True, a rhombus has 4 sides
5. True, a rectangle has 2 pairs of parallel sides
6. Rhombus, square, rectangle, and parallelogram , NOT trapezoid
7. Square, they have 4 equal sides and 4 right angles
8. Rectangle, square.
9. Rectangle, rhombus, square
10. Trapezoid
