Heyy merry christmas !
area of a triangle = base * height : 2
4 * 5 = 20 : 2 = 10
10 * 12triangles = 120cm^3
Answer:
2x-y=0
x=1/2y
Step-by-step explanation:
Answer:
44°
Step-by-step explanation:
Note that the square in located to the left of the two given intersecting lines denotes that it is a right angle, in which the measurements is 90°.
This means that:
∠α + ∠β = 90°
Let:
m∠α = x
m∠β = 46°
Plug in the corresponding numbers and variable to the given terms:
x + 46 = 90
Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Subtract 46 from both sides:
x + 46 (-46) = 90 (-46)
x = 90 - 46
x = 44
x = 44° is your answer.
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Answer:
∠CED = 48°
Step-by-step explanation:
By adding all angles together, they’ll eventually equal ∠AED. Hence, sum of all given angles = ∠AED
∠AEB + ∠BEC + ∠CED = ∠AED
29°+12°+x = 89°
Solve for x and we will get measure of ∠CED:
41°+x = 89°
x = 89°-41°
x = 48°
Therefore, the measure of ∠CED is 48°
40 right? Because base times height divided by two is area of a triangle
