9. Two complementary angles are in the ratio 2:3. Find the angles.
10. Two supplementary angles are in the ratio 4:5. Find the angles.
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Ans 9.
Step-by-step explanation:
Let the two angles be 2x and 3x.
So, 2x+3x=90 degree
5x=90 degree
x=90/5
x=18 degree
Therefore, the two angles are 2×18=36 degree and 3×18=56 degree
Ans 10. Let the two angles be 4x and 5x
So, 4x+5x=90 degree
9x= 90 degree
x=90/9
x=10 degree
So the angles are 4×10= 40 degree and 5×10= 50 degree
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