Math, asked by a0599940, 5 months ago

reta scalene triangle
(d) a right
7. In an isosceles A ABC, the bisectors of ZB and C meet at a point O. If ZA = 40°. then
ZBOC = ?
(a) 110°
(b) 70°
(c) 130°
(d) 150°
otoris 30 cm The lenoth of​

Answers

Answered by dk2018singh
0

Answer:

(b) 70°. answer ho jaye ji

Answered by utkarsh1034
2

Answer:

Step-by-step explanation:

angle BOC Will be 110°.

1 . in an isosceles triangle 2 angles are equal so

A+B+C=180°[angle sum prop.]

40°+B+B=180°[since B=B]

40°+2B=180°

2B=180°-40°=140°

B=140°/2=79°

there fore A=40°,B=C=70°

as CO biscets C then OCB=35°. [half of C]

and OBC=35°[half of B]

OCB+OBC+BOC=180°

35°+35°+BOC=180°

70°+BOC=180°

BOC=180°-70°=110°

Similar questions