Find the area of the shaded region , in which dimensions are given in centimeters.
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✰ Solution :
☞︎︎︎ Given :
- AC = 15cm
- AB = 8cm
- ∠A = 90°
- Hight of BC = 4cm
➪ ABC is a right angled triangle
★ Finding BC
- Pythagoras Theorem :
✞︎ H² = P² + B²
☞︎︎︎ Where,
- P = 15cm
- B = 8cm
➪ H² = 15² + 8²
➪ H² = 225 + 64
➪ H² = 289
∴ H = 17cm
- Now, Finding area of ABC
_____________________________________________
- Now area of unshaded region
- Base = 17cm
- Height = 4cm
_____________________________________________
☞︎︎︎ Area of shaded region :
= Area of ABC - Area of unshaded triangle
➪ 60cm² - 34cm²
∴ Area of shaded region = 26cm²
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