Answer: Its the third pair which can be proven by the HL theorem
Step-by-step explanation:
HL theorem states that if hypotenuse and one leg of two right triangles are congruent then the triangles are said to be congruent.
In first picture there is two right triangle with equal hypotenuse but not any leg. So HL theorem cannot be applied.
In second picture there is no right triangle. So HL theorem cannot be applied
In third triangle there is two right triangle with equal hypotenuse and legs therefore by HL theorem they are congruent.
In fourth picture they are not right angle. So HL theorem cannot be applied
Answer:
<h3>The answer is option C</h3>Step-by-step explanation:
Since it's a right angled triangle we can use trigonometric ratios to find the value of ∠Y
To find the value of ∠Y we use tan
We have
We have the final answer as
<h3>51.34°</h3>Hope this helps you
We have been given that the density of oxygen is 0.001429 grams per cubic centimeter. We are asked to write the given number in scientific notation.
To convert a number into scientific notation, we write the given number as product of two numbers. One factor is a number between 1 and 10, while the 2nd factor is power of 10.
When a decimal is to the left of given number, then we need to move the decimal to right such that the number gets between 1 and 10. Then, we multiply the number by negative power of 10 that many times, we moved the decimal to right.
We can see that decimal is to left of our number. To place decimal after 1, we have to multiply 10 to 3 times. To keep the value of number same we will multiply the same negative power (negative 3).
Therefore, the number 0.001429 will be in scientific notation.