Question

In the given figure if a C equals to BC =4 And. Angle a is to 40° then find angle DC E

Answer 1

Figure not Given

But as per information AC=BC=4

It is an ISOSCELES TRIANGLE

PROPERTY: ANGLE OPPOSITE TO EQUAL SIDES OF TRIANGLE ARE EQUAL.

THEREFORE,

ANGLE B= ANGLE C=X

ANGLE A =40

ANGLE SUM PROPERTY

40+ANGLE B + ANGLE C=180

40+X+X=180

40+2X=180

2X=180-40

2X=140

X=140/2

X=70