<span>the answer is 0.65028784015 </span>
5m / 2
Do you mean right an equation or solve it?
Answer:
Step-by-step explanation: i don’t know to be honest
We know that
if sin A=cos B
then
angle A and angle B are complementary angles
so
A+B=90°
in this problem
(x+21)+<span>(2x+21)=90-------> 3x+42=90-------> 3x=48-----> x=16</span>°
