A = 6. The area is base times height divided by 2 so (3*12)/2 = 6
Answer:
40°
Step-by-step explanation:
Ratio of two supplementary angles = 2 : 7
The angles are 2x , 7x
2x + 7x = 180 {Supplementary}
9x = 180
x = 180/9
x = 20
Acute angle = 2x = 2*20 = 40
Answer:
[−5,5]
Step-by-step explanation: