A line is 180 degrees so write x+(4x-20)=180
Answer:15
Explanation:Since these are similar triangles it means each contrasting side length has a ratio and the ratio for the side lengths is 1:3 based on 4:12 so you would multiple the side length of Db times 3 to find Ed and your answer is 15
Answer:
Answer:
94.6ft
step by step explanation :
sine(52) = x/120
multiply both sides by 120
120 sine(52°) = x
put it in a calculator
X=94.56129043
round to nearest tenth
X = 94.56ft
<span>I think it's 1, 2, 3, 6, 9</span>
Statement: Complementary angles are two angles with measures that have a sum of 90.
Reverse: Two angles with measures that have a sum of 90 are complementary angles.
Here the reverse is true, therefore, the statement is true biconditional.
Statement: A rectangle is a four-sided figure with at least one right angle.
Reverse: A four sided figure with at least one right angle is a rectangle.
Here, the reverse is not true, therefore, the statement is not reversible.