The length of a side of a square is given by the expression 3x - 1 and its perimeter is 20 cm. Write and solve an equation to find the value of x. Which of the following
have both the correct equation and side length of the square?
A. 4(3x - 1) = 20; side length = 4.25 cm
B. (4 x 3x) - (4 x 1) = 20; side length = 5 cm
C. 12x - 1 = 20; side length = 1.75 cm
D. 4(3x - 1) = 20; side length = 2 cm

i will take them

step-by-step explanation:

m∠cdf = 43° , m∠gdf = 114°, m∠gde = 23°, m∠edh = 23° , m∠cdh = 157°

step-by-step explanation:

since, it is given that de bisects the angle gdh ⇒ de divides the angle gdh into two equal angles.

⇒ m∠gde = m∠edh

⇒ 8·x   - 1 = 6·x + 5

⇒ x = 3

so, m∠gde = 8·x - 1 = 23°

and m∠edh = 23°

now, it is given ∠cde is an straight angle so, m∠cde = 180°

⇒ m∠cdf + m∠fdg + m∠gde = 180°

⇒ 43° + m∠fdg + 23° = 180°

⇒ m∠fdg = 114°

again, m∠cde = m∠cdh + m∠edh = 180°

m∠cdh + 23° = 180°

⇒ m∠cdh = 157°

answer: idk

step-by-step explanation: