Base=30cm Heights=20cm Find the X?
2 answers:
Answer:
x = 25 cm
Step-by-step explanation:
Given the triangle is isosceles ( 2 equal sides )
Then the line from the vertex is a perpendicular bisector of the base
We can use Pythagoras' identity on the right triangle
The square on the hypotenuse is equal to the sum of the squares on the other 2 sides.
where x is the hypotenuse and the legs are 15 and 20, so
x² = 15² + 20² = 225 + 400 = 625
Take the square root of both sides
x = = 25
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However, I'll try to help you understand the concept so that you can solve the question you have
Like radicals are characterized by the following:
1- They both have the same root number (square root, cubic root , ...etc)
2- They both have the same radicand (meaning that the expression under the root is the same in both radicals)
Examples of like radicals:
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Check the choices you have. The one that satisfies the above two conditions would be your correct choice
Hope this helps :)