A
tan A
B. Ocos A
C.
cos B
D
tan B
In a right triangle, sin A equals cos B because A and B are complementary angles. Sin A cannot equal tan A, tan B, or cos A.
In a right triangle, the sine of an angle is defined as the length of the opposite side over the length of the hypotenuse. Therefore, sin A cannot be equivalent to tan A or tan B because tangent of an angle is the ratio of the opposite side to the adjacent side. The sine of angle A is not related to cos A because cosine of an angle is the length of the adjacent side over the length of the hypotenuse.
However, it's relevant to note that in a right triangle, the sine of an angle is equal to the cosine of its complementary angle. Since A and B are complementary angles in a right triangle (sum up to 90 degrees), it means that sin A equals cos B. So, the correct answer is C: cos B.
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- 2lb 10oz
Step-by-step explanation:
To compute the area of the outer dark gray strip, you'll need to know the dimensions of the inner light gray strip. Since the inner strip has a width of 1 inch on all sides, you can subtract 2 inches from both the length and width of the outer frame to find the dimensions of the inner strip.
Let's denote the length of the inner strip as L inches and the width as W inches. Then, the dimensions of the outer frame would be (L + 2) inches for the length and (W + 2) inches for the width.
Since the area of the inner light gray strip is 100 square inches, you can set up an equation:
L * W = 100
Now, you can find the area of the outer dark gray strip:
Outer strip area = (L + 2) * (W + 2) - L * W
Substitute the value of L * W from the equation above:
Outer strip area = (L + 2) * (W + 2) - 100
You'll need the specific values of L and W to calculate the exact area of the outer dark gray strip.
Answer:
121
Step-by-step explanation:
the square root of 100 is 10
width is 1 inch
so the length of outside is 11inch
11^2=121
Please help in the next ten minutes