The length of CA is opposite of angle B and since the hypotenuse is known, you can write an equation like this: sin 40 = x/7 which simplifies to sin40 * 7 = x. The answer is A
Answer:
= 12 square units
Step-by-step explanation:
Please look at the photo attached below, I think it is fit with your question
To find the area, substitute the values given in the question into the formula given below.
Area = base • height
= x • h
= 3 units • 4 units
= 12 square units
5x+13 is the correct answer
Answer:
Step-by-step explanation:
If the books length (L) is three times as long as the width (W), the equation for area is this:
L · W = 20 inches,
3W · W = 20 inches - substituting L for 3W
So then the books perimeter is