Answer:
- ∠1 +∠2 +∠3 = 180°
- ∠1 +∠2 = ∠4
Step-by-step explanation:
The sum of the measures of the angles in a triangle is 180°. The equation relating angles 1, 2, 3 will reflect this fact.
m∠1 +m∠2 +m∠3 = 180°
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Of course, angle 3 is supplementary to angle 4, so we have ...
m∠3 +m∠4 = 180°
Substituting this expression for 180° in the first equation, we have ...
m∠1 +m∠2 +m∠3 = m∠3 +m∠4
Subtracting ∠3 from both sides, we are left with an equation relating angles 1, 2 and 4.
m∠1 +m∠2 = m∠4
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The "rule" expressing this last relationship is, "an exterior angle is equal to the sum of the remote interior angles." Knowing this relation can make a number of problems easier to solve.
The correct first step in finding the area of a base of a cylinder is to find the length of radius of the circular base.
Answer:
x - 3
Step-by-step explanation:
(8x + 6) - (7x + 9)
8x - 7x = 1x = x
6 - 9 = -3
x - 3
C. AC/AE = BC/BD
This is because the triangles are similar, and thus the similar lengths are proportional
The answer is 7 because when you divide 50 from 350 I️t gives you seven.
Hope this helped!!!!!!!!!!!!