Question

plz answer me with explanations​

Answer 1

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Answer 2

1answer). angle A=50°

AB=AC(given)

angle B=angle C

angle A+angle B+angle C=180°(property of triangle)

50°+angle B+angle B=180°(angle B= angle c)

2angleB=180°-50°

2angle B=130°

angle B=130°\2

angle B=65°

angle B=angle C

angle C=65°

2answer). angle Q=48°

PQ=PR(given)

PR=48°

angle R=48°

Angle P+angle Q+angle R=180°

angle P+48°+48°=180°

angle P=180°-96°

angle P=84°

3answer). angle A=2x°

angle B=x+10°

AB=AC(given)

x+10°=AC

angle A+angle B+angle C=180°

2x°+x+10°+x+10°=180°

4x°=180°-20°

4x°=160°

x=160°\4

x=40°

angle A=2x=2(40°)=80°

angle B=x+10°=40°+10°=50°

angle C=x+10°=40°+10°=50°

4answer). angle P=x+10°

angle Q=4x-5°

angle Q=angle R

4x-5°=angle R

angle P+angle Q+angle R=180°

x+10°+4x-5°+4x-5°=180°

9x=180°

x=180°\9

x=20°

angle P=x+10°=20°+10°=30°

angle Q=4x-5°=4(20°)-5=80°-5=75°

angle R=4x-5°=4(20°)-5=80°-5=75°

5answer). AB>BC>CA

angle C>angle A>angle B

angle C, angle A and angle B

(Because opposite angle of bigger side is big.)

hope it is helpful...

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