5ABCD is a quadrilateral. AO and BO are the angle bisectors of A
1 answer:
Answer:
60°
Step-by-step explanation:
sum of interior angles of quadrilateral is 360°
∠C = 70°
∠D = 50°
∠C + ∠D = 120°
∴ ∠A + ∠B = 360° - 120° =240°
AO and BO bisect ∠A and ∠B
∠OAB + ∠OBA = 1/2 x ( ∠A + ∠B) = 120°
∠AOB = 180° - (∠OAB + ∠OBA) = 180° - 120° = 60°
You might be interested in
Answer:
2, 5, 40
Step-by-step explanation:
2 students can get 40 cookies
5 students can get 16 cookies
40 students can get 2 cookies.
You need to ask the question while you say you have troubles, But what can I help you with?
Answer: $15.20
Step-by-step explanation: He earned $15.20. Just multiply the 2.00x4 and the 2.40x3
X(-x^4)(-x^4)=
The answer is x^9
Answer:
r=-3 a^n=-8(-3)^n-1
Step-by-step explanation:
