Answer:
cos(400)
Step-by-step explanation:
Useful things:
Cofunction identity: sin(x)=cos(90-x)
Sine and cosine have period of 360 degrees.
So sin(50)=cos(40) by cofunction identity.
Since cosine has period of 360 degrees then cos(40)=cos(360+40).
That simplifies to cos(400).
108
Step-by-step explanation:
because you would have to take the width times the height and that is 52 times 4
Answer:
X is 128°. That's your answer
Answer:
156 inches^2
Step-by-step explanation:
The area of a triangle is 1/2 base x height
All of the triangles have a base of 6 inches and a height of 10 inches.
so 1/2 6 x 10= 30
There are 4 triangles with an area of 30 square inches
and then the square in the middle has a length of 6 in and a width of 6 in so it has an area of 36 in^2
so in total you would have 30+30+30+30+36, or 156
