Question

A
9.
In the given figure, AB is perpendicular to BC at B.
Find : 0) the value of x,
(ii) the complement of angle x.
X + 20
2x + 1
17x - 110
C
B​

Answer 1

Step-by-step explanation:

From the figure

AB∣∣BC at B

Here ∠ABC=9060

substituting the values

x+20+2x+1+7x−11=90

Bu futher calculation

10x+10=90

10x=90−10=80

x=80/10=8

0

(ii) The complement of angle x=90−x

So we get

=90−8=82

0