Eraa1308viz
Answered

Which of the following set of measurement show an obtuse triangle?
A. ∠a = 43°; ∠b = 56°; ∠c = 81°
B. ∠a = 30°; ∠b = 120°; ∠c = 30°
C. ∠a = 60°; ∠b = 60°; ∠c = 60°
D. ∠a = 40°; ∠b = 50°; ∠c = 90°

Sagot :

Ramosyanarasgmcsviz

Answer:

B. <b=120°;

Step-by-step explanation:

100 above is obtuse

90 below is acute

90 is right

cause 90 is the main lead of the protractor so its called right

sorry i only gets letter B.