Question

D الا 3x+3 4x+2 Determine the value of mZDCB.

Answer 1

$▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪$

The given Angles (4x + 2) and (3x + 3) are forming linear pair, so

• $4x + 2 + 3x + 3 = 180$

• $7x + 5 = 180$

• $7x = 180 - 5$

• $7x = 175$

• $x = \dfrac{175}{7}$

• $x = 25$

now, let's find Angle DCB :

• $3x + 3$

• $(3 \times 25) + 3$

• $75 + 3$

• $78 \degree$