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Korolek [52]
2 years ago
8

The measure of the first angle in a right triangle is 10 less than the measure of the second angle.The third angle is the right

angle. Find the measures of the first and second angle
Mathematics
1 answer:
prohojiy [21]2 years ago
5 0
Triangle angles add up to a total of 180 degrees.

X will substitute for the second angle.

(X - 10) will substitute for the first angle, which is 10 less than the second angle (x).

The third angle is a right angle which is 90 degrees.

The equation therefore, the summation of the angles:
90 + x + (x - 10) = 180

Join like terms:
80 + 2x = 180

Solve for x:
2x = 100
x = 50

This means that:
The second angle is 50.
The first angle is 50 - 10 which is 40.

We can double check by adding the angles 50, 40, and 90 together to get 180.
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