plss ans this ....in the figure seg AB =~ seg AC ,seg PB =~ seg PC, angle A=40°, angle P = 140°, find the values of x and y.
Answers
5x + 7y = 12
; 3x - 2y = 4
Step-by-step explanation:
12wrise five Solutions of the equ
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Answer:
To Find:- x and y
Solution:-
∠A+∠B+∠C=180°(sum of all interior angles of a triangle are supplementary) (here including total angle of ∠B and ∠C)
Also AB=AC
if so,then
∠B=∠C(if two opposite sides of a triangle are equal then their opposite angles are also equal)
thus
let them be a
∠A+a+a=180
40+2a=180
2a=180-40=140
a=140/2
a=70°
therefore
∠B(total measure)=70°=∠C(total measure)
and now
Go to ∆PBC
where
∠P+∠B+∠C=180° (sum of all interior angles of a triangle are supplementary)
140+x+x=180
2x=180-140=40
x=40/2=20°
therefore
x=20°
also we have to find y
Angle y is in ∆ABC
in ∆PBC, it's 20°
therefore in ∆ABC,angle y=70-20=50°
Therefore the angles are
Of ∆ABC
∠BAC=40°
∠ABC=70°
∠ACB=70°
Of ∆PBC
∠BPC=140°
∠BCP=20°
∠CBP=x=20°
and also
∠ACP=y=50°
hope it helps