teral ABCDL8-90", <C-LD-60Â° and LA-LC-LD = 10Â°. Find LA, LC and

1.	teral ABCDL8-90", <C-LD-60Â° and LA-LC-LD = 10Â°. Find LA, LC and 20.9. In quadrila90%
Answer» A+B+C+D=360 A+C=180 B+D=180 SINCE ABCD IS A QUADRILATERAL G.T. C-D=60 & A-C-D=10 & B=90 ANGLE D=180-ANGLE B 180-90=90 ALSO GIVEN, ANGLE C- ANGLE D=60 ANGLE C =60 + ANGLE D =60+90=150 SINCE ABCD IS A QUADRILATERAL, ANGLE A+ ANGLE C=180 SO ANGLE A =180-ANGLE C=180-150=30 ANGLE A=30 DEGREES ANGLE C=150 DEGREES ANGLE D=90 DEGREES

teral ABCDL8-90", <C-LD-60Â° and LA-LC-LD = 10Â°. Find LA, LC and 20.9. In quadrila90%

Answer»

A+B+C+D=360

A+C=180

B+D=180 SINCE ABCD IS A QUADRILATERAL

G.T. C-D=60 & A-C-D=10 & B=90

ANGLE D=180-ANGLE B 180-90=90

ALSO GIVEN, ANGLE C- ANGLE D=60

ANGLE C =60 + ANGLE D =60+90=150

SINCE ABCD IS A QUADRILATERAL, ANGLE A+ ANGLE C=180

SO ANGLE A =180-ANGLE C=180-150=30

ANGLE A=30 DEGREES

ANGLE C=150 DEGREES

ANGLE D=90 DEGREES