We know that AXB + CYD and AXB + FZE = 90
20 + CYD = 90 and 20 + FZE = 90
We can see that CYD and FZE are equal so we can use one equation
Let's use 20 + CYD = 90
CYD = 70 and FZE is also equal to 70 because CYD and FZE are equal.
so 70 + 70 = 140 degree
The statement " the measure of angle ABD is 50 degrees, and it is
given that angles ABD and DBC are complementary " justifies why
∠DBC measures 40° ⇒ last answer
Step-by-step explanation:
Let us revise some fact s about angles
1. If two angles are supplementary then the sum of their
measures is 180°
2. If two angles are complementary then the sum of their
measures is 90°
∵ ∠ABD and ∠DBC are complementary ⇒ given
∴ m∠ABD + m∠DBC = 90°
∵ m∠ABD = 50°
∴ 50 + m∠DBC = 90°
- Subtract 50 from both sides
∴ m∠DBC = 40°
The statement " the measure of angle ABD is 50 degrees, and it is
given that angles ABD and DBC are complementary " justifies why
∠DBC measures 40°
Learn more:
You can learn more about angles in brainly.com/question/1599887
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Answer:
b
Step-by-step explanation:
Answer:
the answer is 50
Step-by-step explanation:
To graph y-3x>-2, find the boundary line. (y > -2 + 3x is your answer)
1. Find the equation of the boundary line.
2. Choose a point (x, y) on the shaded side on the line.
3. Plug x and y, in the boundary to identity the inequality sign.