Answer:
The room is 19,5m long and 13m wide.
Step-by-step explanation:
1cm -> 6,5m
3cm -> 19,5m
2cm -> 13m
Answer:
Step-by-step explanation:
I need help too
The double angle formula for the sine is

The right hand side is exactly your expression, where 
So, rewriting the expression from right to left, we have

Answer:
20
Step-by-step explanation:
Write 25% as 25/100 · Since, finding the fraction of a number is same as multiplying the fraction with the number, we have 25/100 of 80 = 25/100 × 80
Answer:
a=7 b=24 c=25
Step-by-step explanation:
Leg a=7
Leg b=24
According to Pythagorean theorem: a^2+b^2=c^2
49+576=c^2
C^2=625
c=25