Answer:
70°
Step-by-step explanation:
A right angle is 90°. 90°-20°=70°
Answer:
B( 3/2
Step-by-step explanation:
Answer:
Step-by-step explanation:
All you gotta do is subtract - b + c from both sides then simplify.
Answer:
81
Step-by-step explanation:
let the terms be a,ar,ar²
r=2/3
a+a(2/3)+a(2/3)²=171
multiply by 9
9a+6a+4a=171×9
19 a=171×9
a=(171×9)/(19)
a=9×9=81
False, for example, if the scale factor is 2, the scale drawing would still be smaller because it would be twice as smaller than the actual object.