Question

find the value of x and y un given triangle​

Answer 1

Answer:

x=50 and y= 20

Step-by-step explanation:

since it is a isosceles triangle angle B = angle C

so angle C and angle B add up-to 140 since angle A is 40

An B +an C=140

2x=140

x=70

in triangle BCD

an C = 70, and D =90, that means y will be 20

so y=20

from that we know that an B =70 means x+y =70

x+20=70

x=70-20

x=50