Answer:
I will say 90 degrees right angle. Have a great day.
Step-by-step explanation:
Answer:
<h2>
Length x width x height</h2>
Step-by-step explanation:
This is how you get the area of a shape.
Answer:
a)
b)
c)
d)
Step-by-step explanation:
We will use the following trigonometric identities
.
Recall that given a right triangle, the sin(theta) is defined by opposite side/hypotenuse. Since we know that the angle is in quadrant 2, we know that x should be a negative number. We will use pythagoras theorem to find out the value of x. We have that
which implies that . Recall that cos(theta) is defined by adjacent side/hypotenuse. So, we know that the hypotenuse is 7, then
b)Recall that , then using the identity from above, we have that
c) Recall that . Then,
d) Recall that and . Then
Area of a circle is 3.14r^2
radius is 7 (half of 14)
3.14(7)^2
=153.9