"complementary angle" meaning in English

{
  "forms": [
    {
      "form": "complementary angles",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
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      "args": {},
      "expansion": "complementary angle (plural complementary angles)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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        {
          "kind": "other",
          "name": "English entries with incorrect language header",
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          "langcode": "en",
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          "orig": "en:Geometry",
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            "Formal sciences",
            "Sciences",
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      ],
      "examples": [
        {
          "text": "Angle A is 40°, and its complementary angle, B, is 50°.",
          "type": "example"
        }
      ],
      "glosses": [
        "An angle that, when added to another referenced angle, produces a right angle."
      ],
      "id": "en-complementary_angle-en-noun-t5NX94bC",
      "links": [
        [
          "geometry",
          "geometry"
        ],
        [
          "angle",
          "angle"
        ],
        [
          "right angle",
          "right angle"
        ]
      ],
      "raw_glosses": [
        "(geometry) An angle that, when added to another referenced angle, produces a right angle."
      ],
      "related": [
        {
          "word": "supplementary angle"
        }
      ],
      "topics": [
        "geometry",
        "mathematics",
        "sciences"
      ]
    }
  ],
  "word": "complementary angle"
}

{
  "forms": [
    {
      "form": "complementary angles",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "complementary angle (plural complementary angles)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "supplementary angle"
    }
  ],
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      "examples": [
        {
          "text": "Angle A is 40°, and its complementary angle, B, is 50°.",
          "type": "example"
        }
      ],
      "glosses": [
        "An angle that, when added to another referenced angle, produces a right angle."
      ],
      "links": [
        [
          "geometry",
          "geometry"
        ],
        [
          "angle",
          "angle"
        ],
        [
          "right angle",
          "right angle"
        ]
      ],
      "raw_glosses": [
        "(geometry) An angle that, when added to another referenced angle, produces a right angle."
      ],
      "topics": [
        "geometry",
        "mathematics",
        "sciences"
      ]
    }
  ],
  "word": "complementary angle"
}