Question

pls answer 8th ques pls what would be the value of x pls explain it​

Answer 1

Answer:

180-108=72°

3k+1k=72°

4k=72°

k=18°

side equal so angle equal

18+18=36° in triangle ABD180-36=144°

36°+54°+x=180

x=90°

Answer 2

Answer:

The answer is x=90 degree

Step-by-step explanation:

Here angle EAC=108 degree,so angle DAC would be 72 degree because of supplymentary angles

Then

angle DAC is divided in ratio 1:3 so if we divide 72 so we will get values 18 degree and 54 degree

then

As AB and DB are equal

therefore triangle ABD is an isosceles triangle

as angle DAB is 18 degree

so ANGLE ADB would also be 18 degree

Now if we use angle sum property of a triangle then

angle ADC +angle DCA + angle DAC=180 degree

so 18 degree + x + 72 =180 degree

then 90+x = 180

so x =90 degree

Hope it helps you

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