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
0
Answer:
(b) 70°. answer ho jaye ji
Answered by
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
Math,
2 months ago
Science,
2 months ago
Social Sciences,
5 months ago
Math,
11 months ago
Physics,
11 months ago