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प्रश्न
Find the measure of the complementary angle of the following angle.
(40 - x)°
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उत्तर
Let the measure of the complementary angle be a.
(40 − x) + a = 90
∴ a = (50 + x)°
Hence, the measure of the complement of an angle of measure (40 − x)° is (50 + x)°
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The drawings below (Figure), show angles formed by the goalposts at different positions of a football player. The greater the angle, the better chance the player has of scoring a goal. For example, the player has a better chance of scoring a goal from Position A than from Position B.
In Parts (a) and (b) given below it may help to trace the diagrams and draw and measure angles.
- Seven football players are practising their kicks. They are lined up in a straight line in front of the goalpost [Figure]. Which player has the best (the greatest) kicking angle?
- Now the players are lined up as shown in figure. Which player has the best kicking angle?
- Estimate atleast two situations such that the angles formed by different positions of two players are complement to each other.
