D because is the equal to the other side but added allá together
Answer: m=45° n=15°
Step-by-step explanation:
ok so idk if you know about the 45-45-90
the first triangle has a 45° angle and 90° angle.
these equal to 135°, 180- 135 is 45.
so m= 45°.
the other triangle looks like it could be equilateral.
so that's 60-60-60.
since m= 45°
60-45= 15
therefore n= 15°
Answer:
6
Step-by-step explanation:
The formula for area is A= pi r ^2
Let,
Length = a
Width= b
a-b=4 --eq(1)
since perimeter of parallelogram P=2(a+b)
therefore
2a+2b=72 --eq(2)
eq(1)=>
a=b+4
substitute the value of a in eq 2
Eq(2)=>
2(b+4)+2b=72
2b+8+2b=72
4b=72-8
4b=64
b=16
Substitue the value of b in eq(1)
Eq(1)=>
a-16=4
a=20
Answer:
Divide both sides by 6 :)
