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What is the area of a right angle triangle whose sides are in the ratio of 5 to 12 with an hypotenuse of 22.75 cm showing work?
Wiki User
∙ 10y ago
1 Let the sides be 5x and 12x
2 Using Pythagoras' theorem: (5x)2+(12x)2 = 22.752
3 So: 25x2+144x2 = 517.5625 => 169x2 = 517.5625
4 Divide both sides by 169 and then square root both sides
5 Therefore: x = 1.75 so sides are 5*1.75 = 8.75 cm and 12*1.75 = 21 cm
6 Area = 0.5*8.75*21 = 91.875 square cm
Wiki User
∙ 10y ago
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What ratio do you use to find the sine of an angle in a right triangle?
Sine ratio = opposite/hypotenuse
How is cosine defined?
In a right triangle, the cosine of an angle is defined as the ratio of the adjacent side of that angle to the hypotenuse.
Which ratio is used in finding the sine of an angle in a right triangle?
It is: sine = opposite/hypotenuse
What is sin in trigonometry?
If you have a right triangle, the sine of an angle is the ratio of the opposite side to the hypotenuse.
What is trigonometric ratio?
A TRIGONOMIC ratio is a ratio between either the opposite side of an angle and the hypotenuse of a triangle (sine), the adjacent side of an angle and the hypotenuse of a triangle (cosine), or the opposite side of an angle and the adjacent side (tangent). Mnemonic: SOH CAH TOA S= sine C= cosine T= tangent O= opposite A= adjacent H= hypotenuse
What is a cosine ratio?
In a right angle triangle it is: cosine ratio = adjacent/hypotenuse
What is the ratios function of sin?
The sine of an angle in a right triangle is the ratio of the length of the side opposite the angle to the length of the hypotenuse.In terms of ratios, the sine of an angle is defined, in a right angled triangle, as the ratio of lengths of the opposite side to the hypotenuse.
What is the ratio of the cosine of an angle?
Fora right angle triangle: cosine angle = adjacent/hypotenuse
Is it true the sine ratio relates the length of the leg the angle that is in question to the length of the hypotenuse?
Yes... opposite an angle of a right triangle to the length of the triangle's hypotenuse.
What does sin x mean?
It means the ratio of the opposite angle to the hypotenuse of a triangle for angle "x". This is for a right triangle.
What ratio do you use to find the sine of an angle in a right triangle?
Sine ratio = opposite/hypotenuse
Is this statement true or false The sine of an angle in a right triangle is the ratio of the length of the side adjacent to that angle to the length of the hypotenuse.?
False because sine ratio = opposite/hypotenuse
What is a cosign in math?
If you mean cosine then it is angle ratio found in a right angle triangle which is adjacent/hypotenuse
How is cosine defined?
In a right triangle, the cosine of an angle is defined as the ratio of the adjacent side of that angle to the hypotenuse.
In trig what is the opposite side over the hypotenuse?
It is the 'sine' ratio for a right angle triangle
What is sin in trigonometry?
If you have a right triangle, the sine of an angle is the ratio of the opposite side to the hypotenuse.
Which ratio is used in finding the sine of an angle in a right triangle?
It is: sine = opposite/hypotenuse
