A. 4x° + 2x° + 45° + 8x° - 5 = 180°
14x° + 40° = 180°
14x° = 180° - 40°
14x°. = 140°
x°. = 140° ÷ 14°
x°. = 10°
4x = 4(10°)
= 40°
2x° + 45° = 2(10°) + 45°
= 20° + 45°
= 65°
8x° - 5 = 8(10°) - 5°
= 80° - 5°
= 75°
semoga bermanfaat
jadikan jawaban yang terbaik yah
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A. 4x° + 2x° + 45° + 8x° - 5 = 180°
14x° + 40° = 180°
14x° = 180° - 40°
14x°. = 140°
x°. = 140° ÷ 14°
x°. = 10°
4x = 4(10°)
= 40°
2x° + 45° = 2(10°) + 45°
= 20° + 45°
= 65°
8x° - 5 = 8(10°) - 5°
= 80° - 5°
= 75°
semoga bermanfaat
jadikan jawaban yang terbaik yah
14x = 140
x = 10
4x° = 4(10)
4x° = 40°
(2x + 45)° = 2(10) + 45
(2x + 45)° = 65°
(8x - 5)° = 8(10) - 5
(8x - 5)° = 75°
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4x + (2x + 45) + (3x - 17) = 180
9x = 152
x = 16,89
4x° = 4(16,89)
4x° = 67,56°
(2x + 45)° = 2(16,89) + 45
(2x + 45)° = 78,78°
(3x - 17)° = 3(16,89) - 17
(3x - 17)° = 33,67°
Karena seluruh sudutnya < 90°, maka termasuk segitiga lancip.