a + 3a + 12 = 90
Solve for a to find the smaller angle.
The measure of one acute angle of a right triangle is twelve more than three times the measure than the other acute angle. Find the measure of each acute angle of the right triangle.
2 answers
a + (3a+12) = 90
4 a = 78
a = 19.5 degrees
90 - 19.5 = 70.5
check
3(19.5) + 12 = 70.5 ok
4 a = 78
a = 19.5 degrees
90 - 19.5 = 70.5
check
3(19.5) + 12 = 70.5 ok
1 answer