A. The angles at the intersection of the two lines can be proven to be congruent and complementary . so they meet at a right angle and the lines are perpendicular.
<u>Step-by-step explanation:</u>
In above question, In order to find whether AB ⊥ CD, Using compass construction & rounder , keep the tip at A and cut arcs at line CD . Follow the same process again with tip at B and cut arcs at line CD . Do this both sides of Line CD i.e. on left side of AB & on right side of AB. Now, join the intersection points of both side arcs which are intersecting each other. Now, to prove both are right angle to each other i.e. AB ⊥ CD , can be done by proving congruent and complementary , so they meet at a right angle and Hence , the lines are perpendicular i.e. AB is inclined to CD at angle of 90°.
<span>When writing a number, the values that given to the numbers are as follows, starting from the right: ones, tens, hundreds, thousands, ten thousands, etc. The three is located on the second position from the right, meaning it is in the tens place. The significance of this is that it has 3 tens, which means its value is 30.I hope that my answer is helpful! Let me know if you need something more :)</span>
the third choice is correct
Answer:
a₁ = 250
Step-by-step explanation:
Use the given values in the formula for the sum of a geometric series, and solve for the unknown.
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S₆ = a₁×(1 -r⁶)/(1 -r) . . . . sum of 6 terms of a geometric series
922.32 = a₁×(1 -(4/5)⁶)/(1 -4/5) = a₁×5×(1 -4096/15625) = a₁×11529/3125
922.32×3125/11529 = a₁ = 250 . . . . divide by the coefficient of a₁
Answer:
D
Step-by-step explanation:
C = 2pir
<em>Divide both sides by 2pi</em>
C/(2pi) = 2pi/2pi r -->
C/(2pi) = r
That's D
