Angles in Special Triangles

Find x.

• 16°

• 24°

• 32°

• 74°

Find x.

• 36°

• 52°

• 57°

• 76°

If AB = AC and BCD is a straight line, find x.

• 74°

• 106°

• 124°

• 143°

If AB = BC and BCD is a straight line, find x.

• 37°

• 42°

• 53°

• 74°

Which of the triangles is/are isosceles triangle(s)?

• ΔABC

• ΔPQR

• Both of them

• None of them

If AB = BC, Which of the following is true?
(I) ∠A = ∠C

(II) ∠B = ∠C

(III) AB = AC

• (I) and (II)

• (I) and (III)

• (II) and (III)

• (I), (II) and (III)

If ADB is a straight line, find x

• 5

• 8

• 13

• 13 cm

If BCD is a straight line, find x

• 24°

• 30°

• 76°

• 84°

If DBE is a straight line, find x

• 48°

• 58°

• 66°

• 96°

If BCDE is a straight and AC = AE = DE, find x.

• 104°

• 116°

• 124°

• 130°