I'm guessing that this one is another complementary angle, so the equation should be 90- 30= (THE ANSWER VARIABLE). Again, complementary angles add up to 90 degrees.
Answer:
2πr=72
=2*22/7*r=72
=r=72*7/44=504/44=252/22=126/11=11.45
=πr theta /180=22/7*11.45*60/180
=11.99=12(approx)
answer is (a) 12
The factor is three. One also but that is true for any two numbers.
16, 048÷ 1/8
First you have to turn the 1/8 upside down and change the division into multiplication. So;
16,048 x8/1
This is the same as 16,048 x 8. And that is 128384. So the answer is 128384. Always know that when you are dividing fractions, the fraction being divided (fraction at the right) has to be turned upside down and the division changed to multiplication. Hope I helped.