Hi there!
In order to find the value of N, we'll need to set the value of the angle containing the variable n equal to 90. This is because in perpendicular lines, all angles are equal to 90.
WORK:
5n - 25 = 90
5n = 115
n = 23
Answer:
46 logs on the 5th row.
Step-by-step explanation:
Number of logs on the nth row is
n = 50 - (n-1)
n = 51 - n (so on the first row we have 51 - 1 = 50 logs).
So on the 5th row we have 51 - 5 = 46 logs.
Answer:
x = 3.6
Step-by-step explanation:
By the Postulate of intersecting chords inside a circle.
Answer:
5i
Step-by-step explanation:
Using the rule of radicals
× 
⇔ 
and 
= i
Given
= 
= 
× ×
= 5 × × i
= 5i
Answer:
156° and 24°
Step-by-step explanation:
Let it's supplementary angle be x.
So, the angle = (x - 132)°
As we know, sum of supplementary angles is 180°;
x + x - 132 = 180
2x = 180 + 132
2x = 312
x = 312/2
x = 156°
(x-132)° = (156-132)° = 24°
Hence, the angles are 156° and 24°.
