In the diagram, ST//PQ reflex angle SRQ = 198o and < RQp = 72o. Find the value of y
18o
54o
87o
92o
Correct answer is B
R +198 = 360(angles at a point)
R = 360 - 198 = 162o
C = 72(alternate angle), b + c = 180(angles or straight line)
b = 190 - c = 180 - 72 = 108
a + b = R = 162
a = R - b = 162 - 108
= 54, but a = y(alternate angles)
y = 54o
Similar Questions
Express in partial fractions \(\frac{11x + 2}{6x^2 - x - 1}\)...
In the diagram above, XY = 8cm and OX = 5cm. Find Oz ...
In the diagram, KS is a tangent to the circle centre O at R and ∠ROQ = 80°. Find ∠QRS. ...
The graph of y = x\(^2\) and y = x intersect at which of these points?...
In a regular polygon of n sides, each interior angle is 144°. Find n ...
One-third of the sum of two numbers is 12, twice their difference is 12. Find the numbers. ...
Find (X-Y) if 4x - 3y = 7 and 3x - 2y = 5 ...
Make 'n' the subject of the formula if w = \(\frac{v(2 + cn)}{1 - cn}\)...