Maths-
General
Easy

Question

M ∠ A = (4x + 3)° and m ∠ B = (5x + 6)°
Find the value of x if the angles A and B are
I) Complementary

hintHint:

Find the value of x using the given conditions like supplementary (or) complementary

The correct answer is: x = 9°


    ANS :- I) x = 9° II) x = 19°
    Explanation :-
    I) m ∠ A = (4x + 3)°and m ∠ B = (5x + 6)°are complementary
    if the angles are complementary then their sum is 90°
    m ∠ A + m ∠ B = 90°
    (4x + 3)° + (5x + 6)°  = 90°
    9x + 9 = 90
    9x = 81
    ∴ x = 9

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